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JAMB Physics 2016 Paper

Question : 40

Total: 48

The impulse of a force is deduced from Newton's second law as

Solution:

Concept:

Impulse equals the change in momentum produced by a force.

Explanation:

Newton's second law states that force is the rate of change of momentum:

F = \frac{mv - mu}{t}

Multiplying both sides by

t

gives the impulse of the force:

Ft = mv - mu

Thus, the impulse of a force is expressed as

mv - mu

Answer:

F = mv - mu

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