Q. A particle is moving with uniform acceleration along a straight line. The average velocity of the particle from $P$ to $Q$ is $8ms^{- 1}$ and that from $Q$ to $S$ is $12ms^{- 1}$. If $QS - PQ$, then the average velocity from $P$ to $S$ is

A) $9.6ms^{- 1}$
B) 12.87$\ ms^{- 1}$
C) 64 $ms^{- 1}$
D) 327$\ ms^{- 1}$
Explanation

(a) Average velocity $= \frac{2 \times 8 \times 12}{8 + 12}ms^{- 1} = 9.6ms^{- 1}$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.