Question

A block of mass 15 kg, is moving with a constant velocity of 4m\second;then calculate the force on the block

Answer 1

We know ,

F = ma

but According to question, the body is moving with constant velocity and acceleration is defined as change in velocity per unit square time.

This means that there is no acceleration i.e. , F = m a ⇒ F = m 0 ⇒ F = 0