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 $= 6m$
When two cars are pulled,
$(m + m)a = 6m$
$2ma = 6m$
$a = 3\ {ms}^{- 2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.