Question

14. The unit of measuring the momentum of a moving body is:

(a) m/s

(b) kg.m/s

(c) kg.m/s2

(d) Nm2/kg​

Answer 1

Answer :

◈ Momentum :

It is measured as product of mass and velocity of body.

• p = m × v

It is a vector quantity having both magnitude as well as direction$.$

Dimension formula : [M¹L¹Tˉ¹]

Unit of mass : kg

Unit of velocity : m/s

Momentum = kg × m/s

፨ Unit of momentum = kg m/s.

Extra Dose :

As per newton's second law of motion, Force is defined as the rate of change of linear momentum.

• F = dp/dt

Therefore, dp = F × dt

Another unit of momentum = N s

Answer 2

Answer:

option b

Explanation:

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