Q. A body moves from rest with a constant acceleration of $5\ m/s^{2}$. Its instantaneous speed (in $m/s$) at the end of $10\ sec$ is
A) 50
B) 5
C) 2
D) 0.5
Explanation
(a) $v = u + at\ \Rightarrow v = 0 + 5 \times 10 = 50\ m/s$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.