Question

The kinetic energy acquired by a body of mass m in travelling a certain distance starting from rest, under a constant force is:

• A. directly proportional to m
• B. directly proportional to $\sqrt{m}$
• C. inversely proportional $\sqrt{m}$
• D. independent of m

Answer 1

The correct option is D independent of m

F.S = work done = kinetic energy

Force is constant so,

kinetic energy is directly proportional to displacement(S).

and independent of m.

here (D) is correct answer