# Two persons manage to push a motorcar of mass 1200 kg at a uniform velocity along a level road.

391 views
in Physics

Two persons manage to push a motorcar of mass 1200 kg at a uniform velocity along a level road. The same motor car can be pushed by three persons to produce an acceleration of 0.2ms-2 with what force does each person push the motorcar? (Assume that all persons push the motorcar with the same muscular effort)

+1 vote
by (59.3k points)
selected by

Mass of motor car m = 1200 Kg.
Acceleration produced a = 0.2 ms-2
Therefore force applied on the car by three persons = 1200 × 0.2 = 240 N.
∴ Force applied on the car by one person = $\frac{240}{3}$ = 80 N,

+1 vote