A gardener pulls a lawn roller with a force of making an angle of with the horizontal

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

Problem

A gardener pulls a lawn roller with a force of

20\,\text{N}

making an angle of

60^{\circ}

with the horizontal. The roller moves

5\,\text{m}

along the ground. Calculate the work done by the force. (a)

86.6\,\text{J}

(b)

100\,\text{J}

(c)

50\,\text{J}

(d)

-50\,\text{J}