A girl pulls a trolley with a force of and the trolley moves

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A girl pulls a trolley with a force of

20\,\text{N}

and the trolley moves

15\,\text{m}

. If the work done is

200\,\text{J}

, determine the angle

\theta

between the force and the direction of motion. (a)

42^{\circ}

(b)

48^{\circ}

(c)

60^{\circ}

(d)

37^{\circ}