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)

Question

Accepted Answer

Answer :

Given, mass of the car (m) = 1200 kg

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

\(\Rightarrow F = 1200 × 0.2 m/s^2 = 240 N \)

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