Q. The engine of a car produces an acceleration of $6\ ms^{- 2}$ in the car. If this car pulls another car of the same mass, then the acceleration would be
A) 6 $ms^{- 2}$
B) 12 $ms^{- 2}$
C) 3 $ms^{- 2}$
D) 1.5 $ms^{- 2}$
Explanation
(c) Force applied by engine= 6 m
When two cars are pulled,
$(m + m)a = 6\ m$
or $2ma = 6m$ or $a = 3\ ms^{- 2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.