Physics

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 a. 0 J. b. 4.5 J. c. 7.2 J. d. 9.0 J.