A laboratory cart is pulled by a motor that exerts a force of while the cart moves at

PHYSICS · Subjective · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

A laboratory cart is pulled by a motor that exerts a force of

25\,\text{N}

while the cart moves at

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

. If the motor’s power output is measured to be

45\,\text{W}

, calculate the angle

\theta

between the direction of the force and the cart’s velocity.