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Given the magnitude and direction of the...

Given the magnitude and direction of the net force acting on a car moving with a constant velocity of 30 km.`h^(-1)` on a rough road.

Text Solution

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The velocity does not change, so, there is no acceleration. The relation F =ma shows that as a=0, the net force F = 0. Here, the force applied by the engine is balanced exactly by the friction of the road.
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