Question

A ball is rolling over a smooth surface with a velocity of 20 m/s. What will be the velocity of ball after
10 s, if the force applied on it is zero.​

Answer 1

Answer:

20 m/s

Explanation:

A ball is rolling over a smooth surface with a velocity of 20 m/s.

Since the surface is smooth, there is no frictional force acting on it.

The force applied is 0.

So net force acting on the ball is 0. There will be no acceleration.

Hence, the ball will maintain its initial velocity which is 20 m/s.

Answer 2

$\bf \huge \underline{\underline{Question}} \:$

A ball is rolling over a smooth surface with a velocity of 20 m/s. What will be the velocity of ball after

10 s, if the force applied on it is zero.

_____________________________

$\bf \underline{\underline{given \to}} \:$

• A ball is rolling over a smooth surface with a velocity of 20 m/s.
• the force applied on it is zero.

________________________________

$\bf \underline{\underline{to \: find \to}} \:$

• What will be the velocity of ball afte 10 s,

______________________________

$\bf \underline{\underline{according \: to \: the \: question \to}} \:$

A ball is rolling over a smooth surface with a velocity of 20 m/s.

Since the surface is smooth, The force applied is 0.

There will be no acceleration.

Hence,

The velocity of ball= 20m/s