Question

A force of 800N was applied to stop a car that was moving with a constant velocity. The car stopped after moving 12 meters. How much work is done​

Answer 1

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Work done by the force to stop the car is 9600 Joules.

Magnitude of the Force applied = 800N ; Distance covered before the car stopped = 12m

Work done by the force = Force*Displacement = 800*12 = 9600 Joules.