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

When the third person starts pushing the car, the acceleration (a) is $$0.2m/s^2$$ .
$$\therefore$$ The force applied by the third person (F) = ma
$$\Rightarrow F = 1200 × 0.2 m/s^2 = 240 N$$