A body of mass 5 kg is initially at rest. By applying a force of 20 N at an angle of 60° with horizontal the body is moved to a distance of 4 m. The kinetic energy acquired by the body is
A. 80 J
B. 60 J
C. 40 J
D. 17.2 J
Answer:C
A body of mass 5 kg is initially at rest. By applying a force of 20 N at an angle of 60° with horizontal the body is moved to a distance of 4 m. The kinetic energy acquired by the body is
A. 80 J B. 60 J C. 40 J D. 17.2 J