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If an object is moving in a straight line with constant acceleration, which of the following is true?
Under constant acceleration, the velocity of the object changes uniformly with time. Displacement is proportional to the square of time in such cases, not directly proportional to time. This question related to Chapter 2 physics Class 11th NCERT. From the Chapter 2. Motion in Straight Line. Give ansRead more
Under constant acceleration, the velocity of the object changes uniformly with time. Displacement is proportional to the square of time in such cases, not directly proportional to time. This question related to Chapter 2 physics Class 11th NCERT. From the Chapter 2. Motion in Straight Line. Give answer according to your understanding.
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Which of the following quantities has both magnitude and direction?
Velocity is a vector quantity, as it has both magnitude and direction. The others are scalar quantities. This question related to Chapter 2 physics Class 11th NCERT. From the Chapter 2. Motion in Straight Line. Give answer according to your understanding. For more please visit here: https://www.tiwaRead more
Velocity is a vector quantity, as it has both magnitude and direction. The others are scalar quantities. This question related to Chapter 2 physics Class 11th NCERT. From the Chapter 2. Motion in Straight Line. Give answer according to your understanding.
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What is the third equation of motion?
The third equation of motion relates the final velocity 𝑣, initial velocity 𝑢, acceleration 𝑎, and displacement 𝑠: v² =u² +2as. This question related to Chapter 2 physics Class 11th NCERT. From the Chapter 2. Motion in Straight Line. Give answer according to your understanding. For more please visitRead more
The third equation of motion relates the final velocity 𝑣, initial velocity 𝑢, acceleration 𝑎, and displacement 𝑠: v² =u² +2as.
This question related to Chapter 2 physics Class 11th NCERT. From the Chapter 2. Motion in Straight Line. Give answer according to your understanding.
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The magnitude of instantaneous velocity is equal to instantaneous speed when:
Instantaneous velocity and speed are equal in magnitude when the motion is along a straight line because there is no deviation in direction. This question related to Chapter 2 physics Class 11th NCERT. From the Chapter 2. Motion in Straight Line. Give answer according to your understanding. For moreRead more
Instantaneous velocity and speed are equal in magnitude when the motion is along a straight line because there is no deviation in direction. This question related to Chapter 2 physics Class 11th NCERT. From the Chapter 2. Motion in Straight Line. Give answer according to your understanding.
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What is rolling motion? Discuss the motion of a disc rolling without slipping on a level surface. Hence find the condition for rolling without slipping.
Rolling motion describes the motion of an object in which it moves with a constant angular velocity, translating along a plane while rotating around its axis. A typical example is a disc rolling without sliding on a level surface. For this case, the disc moves about its center, and a point of contacRead more
Rolling motion describes the motion of an object in which it moves with a constant angular velocity, translating along a plane while rotating around its axis. A typical example is a disc rolling without sliding on a level surface. For this case, the disc moves about its center, and a point of contact with the plane momentarily remains stationary, or doesn’t slide.
In rolling motion, there has to be some relationship between its linear velocity and angular velocity if the disc rolls without slipping. The linear velocity of the disc’s center of mass must, therefore, match the product of its angular velocity and radius for the disc to roll smoothly, without sliding at the point of contact.
Friction plays a very important role in this process. Static friction between the disc and the surface prevents slipping, allowing the disc to maintain its rolling motion. If the linear velocity exceeds this relationship, the disc will start to slip, breaking the condition of rolling without slipping.
In summary, rolling motion is characterized by the combination of translation and rotation. For a disc to roll without slipping on a level surface, the static friction must be sufficient to maintain the proper relationship between the disc’s linear and angular velocities.
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