Question

Work done on a body of mass m as a function of time t if it is accelerated from rest to a speed v in time to is

Answer 1

Work done = force × displacement.
Mass = m
Time.= t
initial velocity= 0m/sec
final velocity= v
Force = m ×a
= m× (v - u )/ t
Therefore work done. = m (v-u) /t × s.