A book of mass is pulled along a smooth surface by a force of applied at an angle of…

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

Problem

A book of mass

0.80 \text{ kg}

is pulled along a smooth surface by a force of

6.0 \text{ N}

applied at an angle of

60^\circ

to the horizontal. The book slides along the surface a distance of

1.5 \text{ m}

. The work done on the book by the force is (1) 0 J. (2) 4.5 J. (3) 7.2 J. (4) 9.0 J.