A body of mass 5 kg is placed at the origin, and can move only on the x-axis. A force of 10 N is acting on it in a direction making an angle of o `60^(@)` with the x-axis and isplaces it along the x-axis by 4 metres . The work done by the force is

Options

A. 2.5 J
B. 7.25 J
C. 40 J
D. 20 J

Answer

D