While pulling a trolley on a straight road

PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

While pulling a trolley on a straight road, a student first applies a force of

60\,\text{N}

along the direction of motion and moves it

5\,\text{m}

. (i) Calculate the work done in this case. (ii) Later, the student applies the same

60\,\text{N}

force but at an angle of

45^{\circ}

to the direction of motion. How far must the trolley be pulled so that the work done is equal to the value obtained in part (i)?