Physics

Problem

A toy car of mass

1.5\,\text{kg}

is pulled forward by a horizontal force of

12\,\text{N}

. At a certain instant its speed along the line of action of the force is

3\,\text{m\,s}^{-1}

. Calculate the instantaneous power delivered by the force at that instant. a)

18\,\text{W}

36\,\text{W}

54\,\text{W}

24\,\text{W}