Physics
A tennis ball and a cricket ball, both are stationary. To start motion in them —
- A less force is required for the cricket ball than for the tennis ball
- A less force is required for the tennis ball than for the cricket ball
- Same force is required for both the balls
- Nothing can be said.
Laws of Motion
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Answer
A less force is required for the tennis ball than for the cricket ball
Reason — As we know, less the mass, less is the inertia of the body and because the mass of the tennis ball is less than the cricket ball, hence less force is required for the tennis ball than for the cricket ball to start motion.
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Related Questions
The property of inertia is more in —
- a car
- a truck
- a horse cart
- a toy car
A force is needed to —
- change the state of motion or state of rest of the body
- keep the body in motion
- keep the body stationary
- keep the velocity of body constant
A student has four balls - table tennis ball, tennis ball, cricket ball and a football. The correct ascending order of inertia is :
- table tennis ball, tennis ball, football, cricket ball
- cricket ball, football, tennis ball, table tennis ball
- table tennis ball, football, cricket ball, tennis ball
- football, cricket ball, table tennis ball, tennis ball
Which one of the following is not an example of inertia of rest?
- When a train suddenly starts moving forward, the passenger standing in the compartment tends to fall backwards.
- When a hanging carpet is beaten with a stick, dust particles start falling out of it.
- On shaking the branches of a tree, the fruits fall down.
- When a passenger jumps out of a moving train, he falls down.