Which of the following is not true?
Correct answer: C. Momentum is not a vector quantity
- A. Momentum is quantity of motion
- B. Unit of momentum is N.s
- C. Momentum is not a vector quantity
- D. Momentum is product of mass and velocity
Explanation
Momentum is a vector quantity. The direction of an object's momentum vector is in the direction that the object is moving.
This question appeared on the NUMS 2021 paper, which you can sit online with every answer explained.
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About Linear Momentum
Linear momentum is the vector product of mass and velocity, p = mv, and changes when a net external force acts. Work includes impulse as the change in momentum, conservation of momentum in isolated systems, collisions and explosions, and the distinction between elastic, inelastic and perfectly inelastic collisions.
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