Question
The unit of momentum is:
This question was previously asked in
RRB ALP/Technician 2018 CBT 2 Electronics Mechanic Question Paper (23-Jan-2019) (Shift 1)
The correct answer is
Kgms -1
CONCEPT :
Linear Momentum:
- The linear momentum of a body is the quantity of motion contained in the body .
- It is measured in terms of the force required to stop the body in unit time .
- It is also measured as the product of the mass of the body and its velocity i.e.,
Momentum = mass × velocity.
EXPLANATION :
- From the above, it is clear that momentum is defined as the product of the mass of the body and its velocity i.e.,
⇒ Momentum (p) = mass (m) × velocity (v)
- As we know that, the SI unit of mass is kg and the SI unit of velocity is m/s . Therefore the unit of momentum is
⇒ p = kgms -1
- Therefore, its unit is kg.ms -1.
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