While towing a stalled car

PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

While towing a stalled car, a mechanic pulls it with a rope making an acute angle

\theta

with the horizontal. The magnitude of the pulling force is

30\,\text{N}

and the car moves

40\,\text{m}

horizontally. If the work done by the force is

720\,\text{J}

, determine the value of

\theta

. (a)

37^{\circ}

(b)

53^{\circ}

(c)

45^{\circ}

(d)

31^{\circ}