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How is weight related to mass?
Weight is 𝑊 = 𝑚𝑔, where 𝑔 is the acceleration due to gravity, making it proportional to mass. This question related to Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Give answer according to your understanding. For more please visit here: https://www.tiwariacademy.com/ncert-solRead more
Weight is 𝑊 = 𝑚𝑔, where 𝑔 is the acceleration due to gravity, making it proportional to mass. This question related to Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Give answer according to your understanding.
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What is the acceleration of objects in free fall in a vacuum?
In a vacuum, all objects fall with the same acceleration due to gravity, irrespective of mass. This question related to Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Give answer according to your understanding. For more please visit here: https://www.tiwariacademy.com/ncert-soRead more
In a vacuum, all objects fall with the same acceleration due to gravity, irrespective of mass. This question related to Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Give answer according to your understanding.
For more please visit here:
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Why is the Moon’s gravitational force weaker than Earth’s?
The Moon's gravity is relatively less because its mass is lesser compared to the earth. This was a question under Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Answer accordingly. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapteRead more
The Moon’s gravity is relatively less because its mass is lesser compared to the earth. This was a question under Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Answer accordingly.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-7/
Why can light not escape a black hole?
Black Hole Escape Velocity Even light cannot get out of black hole because black hole's escape velocity is larger than the velocity of light. This question belongs to Chapter 7 physics Class 11th NCERT. Question: From Chapter 7. Gravitation. Answer on the basis of your understanding. For more pleaseRead more
Black Hole Escape Velocity Even light cannot get out of black hole because black hole’s escape velocity is larger than the velocity of light. This question belongs to Chapter 7 physics Class 11th NCERT. Question: From Chapter 7. Gravitation. Answer on the basis of your understanding.
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A child is sitting on a swing. Its minimum and maximum heights from the ground 0.75 m and 2 m respectively, its maximum speed will be
To find the maximum speed of the child on the swing, we use the principle of conservation of energy. The total mechanical energy is conserved, so the loss in potential energy is converted to kinetic energy at the lowest point. Step 1: Calculate the change in potential energy The difference in heightRead more
To find the maximum speed of the child on the swing, we use the principle of conservation of energy. The total mechanical energy is conserved, so the loss in potential energy is converted to kinetic energy at the lowest point.
Step 1: Calculate the change in potential energy
The difference in height between the maximum and minimum positions is:
h = Maximum height − Minimum height
h = 2 m − 0.75 m
h = 1.25 m
Step 2: Apply conservation of energy law
At the highest point all the energy will be potential. At the lowest point, it will be the kinetic energy where the potential is converted into this kinetic energy.
K.E = P.E.
(1/2)mv² = mgh
Given:
– m = mass of child (gets eliminated on both the sides)
g = acceleration due to gravity = 10 m/s²
h = height = 1.25 m
– v = maximum speed
Rearrange the equation to find v:
v² = 2gh
v = √(2gh)
Substitute the values:
nv = √(2 × 10 × 1.25)
nv = √(25)
nv = 5 m/s
The maximum speed of the child on the swing is 5 m/s.
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