Question

A body of mass m kg starts from rest and travels a distance of s metres in t seconds the force acting on it is

Answer 1

Mass of the body = m kg

Distance travelled =s m

Time taken =t sec

Since the body starts moving from rest[ u=0] , so there must be acceleration in the body...

Let the acceleration of the body be a m /s^2

Therefore a= v-u/t

a= v / t

Since, u =0

Now, force on body =

mass * acceleration

= m* a

Or, mv/t.....[a=v/t]

Hope it helps you.....

Answer 2

Mass of the body = m kg

Distance travelled =s m

Time taken =t sec

Since the body starts moving from rest[ u=0] , so there must be acceleration in the body...

Let the acceleration of the body be a m /s^2

Therefore a= v-u/t

a= v / t

Since, u =0

Now, force on body =

mass x acceleration

= m* a

Or, mv/t[a=v/t]