A body of mass 40 Kg covers a distance of 50 m in 5s starting from rest under the influence of a force. What is the work done by the force on the body?
A. 8000 J
B. -8000 J
C. 20000 J
D. 800 J
Answer:A
A body of mass 40 Kg covers a distance of 50 m in 5s starting from rest under the influence of a force. What is the work done by the force on the body?
A. 8000 J B. -8000 J C. 20000 J D. 800 J