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
26 Likes
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.
Answered By
15 Likes
Related Questions
A ball is thrown vertically upwards with an initial velocity of 49 m s-1. Calculate: (i) the maximum height attained, (ii) the time taken by it before it reaches the ground again. (Take g = 9.8 m s-2)
A stone is dropped freely from the top of a tower and it reaches the ground in 4 s. Taking g = 10 m s-2, calculate the height of the tower.
A pebble is dropped freely in a well from it's top. It takes 20 s for the pebble to reach the water surface in the well. Taking g = 10 m s-2 and speed of sound = 330 m s-1, find: (i) the depth of water surface, and (ii) the time when echo is heard after the pebble is dropped.
A ball is thrown vertically upwards from the top of a tower with an initial velocity of 19.6 m s-1. The ball reaches the ground after 5 s. Calculate: (i) the height of the tower, (ii) the velocity of ball on reaching the ground. Take g = 9.8 m s-2