Which of the following four bodies has the greatest kinetic energy?

Question

a. A body of mass 1 kg moving with speed 1000 m/s.

b. A body of mass 2 kg moving with speed 50 m/s

c. A body of mass 3 kg moving with speed 50 m/s

d. A body of mass 50 kg moving with speed 2 m/s

e. A body of mass 50 kg moving with speed 2 m/s

Answer 1

multiply mass*velocity*velocity. Which is greater. Hint,speed squared is a big factor.