Q. The kinetic energy acquired by a mass $m$ in travelling a certain distance $d$ starting from rest under the action of a constant force is directly proportional to
A) $\sqrt{m}$
B) Independent of $m$
C) $1/\sqrt{m}$
D) $m$
Explanation
(b) Kinetic energy acquired by the body
= Force applied on it $\times$ distance covered by the body
K.E. $= F \times d$
If $F$ and $d$ both are same then K. E. acquired by the body will be same
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.