An object is pulled through a displacement of by the same force in four different…

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

Problem

An object is pulled through a displacement of

2\,\text{m}

by the same

10\,\text{N}

force in four different situations. The angle

\theta

between the force and the displacement is changed each time: Situation A:

\theta = 0^\circ

Situation B:

\theta = 30^\circ

Situation C:

\theta = 60^\circ

Situation D:

\theta = 120^\circ

Which situation results in the greatest positive work done by the force? (a) Situation C (b) Situation D (c) Situation A (d) Situation B