To determine the friction force exerted on the wooden cabinet, when a horizontal force of 200 N is applied to move it at a constant velocity, we'll first consider the concept of static friction. When an object is moving at a constant velocity, the force applied (200 N in this case) is equal to the fRead more
To determine the friction force exerted on the wooden cabinet, when a horizontal force of 200 N is applied to move it at a constant velocity, we’ll first consider the concept of static friction.
When an object is moving at a constant velocity, the force applied (200 N in this case) is equal to the force of friction acting against it.
Therefore, the friction force exerted on the cabinet will be equal to the applied force, which is 200 N. This friction force counteracts the applied force, allowing the cabinet to move at a constant velocity across the floor.
The student correctly mentions Newton's third law, which states that for every action, there is an equal and opposite reaction. However, the conclusion that the forces cancel each other out, resulting in no motion of the truck, needs further explanation. The equal and opposite forces between the perRead more
The student correctly mentions Newton’s third law, which states that for every action, there is an equal and opposite reaction. However, the conclusion that the forces cancel each other out, resulting in no motion of the truck, needs further explanation.
The equal and opposite forces between the person and the truck do not directly determine whether the truck moves. While the person exerts a force on the truck, the truck exerts an equal force back on the person due to Newton’s third law. However, the truck’s lack of movement is primarily due to the force of static friction between the tires and the road.
If the force applied by the person isn’t greater than the maximum static friction holding the truck in place, the truck will not move. The equilibrium of forces doesn’t imply the cancellation of forces, but rather a balance where there’s no net force to cause the truck’s motion. Hence, the truck remains stationary despite the equal and opposite forces between the person and the truck.
Here are the key points regarding the universal law of gravitation: 1. Attraction between Objects: Every object in the universe attracts every other object. 2. Proportional to Mass: The force of attraction is directly proportional to the product of the masses of the objects involved. Larger masses eRead more
Here are the key points regarding the universal law of gravitation:
1. Attraction between Objects: Every object in the universe attracts every other object.
2. Proportional to Mass: The force of attraction is directly proportional to the product of the masses of the objects involved. Larger masses exert a stronger gravitational force.
3. Inverse Square Relationship: The force of gravity decreases as the square of the distance between the centers of the objects increases. This means that as objects move farther apart, the gravitational force between them becomes weaker.
4. Formulated by Newton: Sir Isaac Newton formulated this law, represented mathematically as F = G x ((m₁ x m₂)/r²), where F is the gravitational force, G is the gravitational constant, m₁ and m₂ are the masses of the objects, and r is the distance between their centers.
5. Explains Celestial Motion: This law explains fundamental phenomena like planetary orbits around the Sun, the gravitational pull of celestial bodies, and the attraction between objects on Earth.
These points encapsulate the fundamental aspects of Newton’s universal law of gravitation, which describes the gravitational interactions between all objects in the universe.
Braking Scenario: - Inertia's Role: Imagine you're on a moving bus. You and the bus are moving at the same speed. - Abrupt Braking: When the bus stops suddenly, it slows down, but due to your body's inertia, you want to continue moving forward. - Result: Your body momentarily maintains its forward mRead more
Braking Scenario:
– Inertia’s Role: Imagine you’re on a moving bus. You and the bus are moving at the same speed.
– Abrupt Braking: When the bus stops suddenly, it slows down, but due to your body’s inertia, you want to continue moving forward.
– Result: Your body momentarily maintains its forward motion, causing you to lean or lurch forward relative to the bus.
Acceleration Scenario:
– Inertia’s Influence: At the bus’s initial rest, you are stationary.
– Quick Acceleration: As the bus accelerates forward, your body resists this change in motion.
– Outcome: Your body lags behind the bus’s acceleration, resulting in you leaning or falling backward relative to the bus’s direction.
Conclusion:
This experience is due to inertia, which tends to keep your body in its initial state of motion. When the bus abruptly changes its motion, your body tends to stay in its initial state, causing the sensation of leaning or falling in the opposite direction.
It's possible under certain conditions:** 1. Uniform Motion: The object must be moving at a constant velocity. 2. Balanced Forces: While there might be multiple forces acting, their combined effect results in zero net force. 3. Directional Consistency: These forces shouldn't change the velocity's maRead more
It’s possible under certain conditions:**
1. Uniform Motion: The object must be moving at a constant velocity.
2. Balanced Forces: While there might be multiple forces acting, their combined effect results in zero net force.
3. Directional Consistency: These forces shouldn’t change the velocity’s magnitude or direction.
Explanation:
– If an object is already moving steadily with constant velocity and the forces acting on it counterbalance each other (resulting in a net force of zero), it maintains its velocity due to Newton’s First Law.
– Despite no unbalanced force causing acceleration or deceleration, the object continues with its constant velocity. For instance, this happens in space or when air resistance balances gravity during free fall (reaching terminal velocity).
Conclusion:
An object can uphold a non-zero velocity while experiencing a net zero unbalanced force by sustaining constant motion with balanced forces, allowing it to move steadily without changing its speed or direction.
Using a horizontal force of 200 N, we intend to move a wooden cabinet across a floor at a constant velocity. What is the friction force that will be exerted on the cabinet?
To determine the friction force exerted on the wooden cabinet, when a horizontal force of 200 N is applied to move it at a constant velocity, we'll first consider the concept of static friction. When an object is moving at a constant velocity, the force applied (200 N in this case) is equal to the fRead more
To determine the friction force exerted on the wooden cabinet, when a horizontal force of 200 N is applied to move it at a constant velocity, we’ll first consider the concept of static friction.
When an object is moving at a constant velocity, the force applied (200 N in this case) is equal to the force of friction acting against it.
Therefore, the friction force exerted on the cabinet will be equal to the applied force, which is 200 N. This friction force counteracts the applied force, allowing the cabinet to move at a constant velocity across the floor.
See lessAccording to the third law of motion when we push on an object, the object pushes back on us with an equal and opposite force. If the object is a massive truck parked along the roadside, it will probably not move. A student justifies this by answering that the two opposite and equal forces cancel each other. Comment on this logic and explain why the truck does not move.
The student correctly mentions Newton's third law, which states that for every action, there is an equal and opposite reaction. However, the conclusion that the forces cancel each other out, resulting in no motion of the truck, needs further explanation. The equal and opposite forces between the perRead more
The student correctly mentions Newton’s third law, which states that for every action, there is an equal and opposite reaction. However, the conclusion that the forces cancel each other out, resulting in no motion of the truck, needs further explanation.
The equal and opposite forces between the person and the truck do not directly determine whether the truck moves. While the person exerts a force on the truck, the truck exerts an equal force back on the person due to Newton’s third law. However, the truck’s lack of movement is primarily due to the force of static friction between the tires and the road.
If the force applied by the person isn’t greater than the maximum static friction holding the truck in place, the truck will not move. The equilibrium of forces doesn’t imply the cancellation of forces, but rather a balance where there’s no net force to cause the truck’s motion. Hence, the truck remains stationary despite the equal and opposite forces between the person and the truck.
See lessState the universal law of gravitation.
Here are the key points regarding the universal law of gravitation: 1. Attraction between Objects: Every object in the universe attracts every other object. 2. Proportional to Mass: The force of attraction is directly proportional to the product of the masses of the objects involved. Larger masses eRead more
Here are the key points regarding the universal law of gravitation:
1. Attraction between Objects: Every object in the universe attracts every other object.
2. Proportional to Mass: The force of attraction is directly proportional to the product of the masses of the objects involved. Larger masses exert a stronger gravitational force.
3. Inverse Square Relationship: The force of gravity decreases as the square of the distance between the centers of the objects increases. This means that as objects move farther apart, the gravitational force between them becomes weaker.
4. Formulated by Newton: Sir Isaac Newton formulated this law, represented mathematically as F = G x ((m₁ x m₂)/r²), where F is the gravitational force, G is the gravitational constant, m₁ and m₂ are the masses of the objects, and r is the distance between their centers.
5. Explains Celestial Motion: This law explains fundamental phenomena like planetary orbits around the Sun, the gravitational pull of celestial bodies, and the attraction between objects on Earth.
These points encapsulate the fundamental aspects of Newton’s universal law of gravitation, which describes the gravitational interactions between all objects in the universe.
See lessWhy do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when it accelerates from rest?
Braking Scenario: - Inertia's Role: Imagine you're on a moving bus. You and the bus are moving at the same speed. - Abrupt Braking: When the bus stops suddenly, it slows down, but due to your body's inertia, you want to continue moving forward. - Result: Your body momentarily maintains its forward mRead more
Braking Scenario:
– Inertia’s Role: Imagine you’re on a moving bus. You and the bus are moving at the same speed.
– Abrupt Braking: When the bus stops suddenly, it slows down, but due to your body’s inertia, you want to continue moving forward.
– Result: Your body momentarily maintains its forward motion, causing you to lean or lurch forward relative to the bus.
Acceleration Scenario:
– Inertia’s Influence: At the bus’s initial rest, you are stationary.
– Quick Acceleration: As the bus accelerates forward, your body resists this change in motion.
– Outcome: Your body lags behind the bus’s acceleration, resulting in you leaning or falling backward relative to the bus’s direction.
Conclusion:
See lessThis experience is due to inertia, which tends to keep your body in its initial state of motion. When the bus abruptly changes its motion, your body tends to stay in its initial state, causing the sensation of leaning or falling in the opposite direction.
An object experiences a net zero external unbalanced force. Is it possible for the object to be travelling with a non-zero velocity? If yes, state the conditions that must be placed on the magnitude and direction of the velocity. If no, provide a reason.
It's possible under certain conditions:** 1. Uniform Motion: The object must be moving at a constant velocity. 2. Balanced Forces: While there might be multiple forces acting, their combined effect results in zero net force. 3. Directional Consistency: These forces shouldn't change the velocity's maRead more
It’s possible under certain conditions:**
1. Uniform Motion: The object must be moving at a constant velocity.
2. Balanced Forces: While there might be multiple forces acting, their combined effect results in zero net force.
3. Directional Consistency: These forces shouldn’t change the velocity’s magnitude or direction.
Explanation:
– If an object is already moving steadily with constant velocity and the forces acting on it counterbalance each other (resulting in a net force of zero), it maintains its velocity due to Newton’s First Law.
– Despite no unbalanced force causing acceleration or deceleration, the object continues with its constant velocity. For instance, this happens in space or when air resistance balances gravity during free fall (reaching terminal velocity).
Conclusion:
See lessAn object can uphold a non-zero velocity while experiencing a net zero unbalanced force by sustaining constant motion with balanced forces, allowing it to move steadily without changing its speed or direction.