question_answer

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 \[{{60}^{o}}\] with the x-axis and displaces it along the x-axis by 4 metres. The work done by the force is                          [MP PET 2003]

A)             2.5 J   

B)             7.25 J

C)             40 J    

D)             20 J