Question

23)
Force can change the state of motion of objects. Give an example for only
three of the following changes in the states of motion of objects.
i)
ii)
iii)
iv)
From rest to motion
From motion to rest
Change in direction
Change in speed
3 Marks​

Answer 1

Answer:

i) kicking a stationary football

ii) stoping a moving football by a goalkeeper

iii) hiting a ball by a racquet

iv) dropping a ball from a height

Explanation:

i) when we kick a stationary football,it starts moving. It shows that a force can move a stationary body.

ii) when a football is stopped by a goalkeeper,it demonstrates that a force can stop a moving body.

iii) when we hit a ball by a racquet,the ball changes its direction due to the force exerted by racquet.

iv) when a ball is dropped from a height, its speed goes on increasing because the earth applies a pulling force on it.