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Question
What is momentum? Write its SI unit. Interpret force in terms of momentum. Represent the following graphically
(a) momentum versus velocity when mass is fixed.
(b) momentum versus mass when velocity is constant.
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Solution
Momentum is a property of a moving body by the virtue of both its mass and velocity. It is equal to the product of
mass and velocity. p = m × v
Its SI unit is kg ms−1
As momentum = mass x velocity
(a) When the mass is fixed,
momentum α velocity
(b) When velocity is constant,
momentum α mass
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