Question

7. A body of mass 5 kg is travelling with a uniform velocity of 2 m/s. Its momentum is
(b) 7 kg m/s
(a) 10 kg m/s
(d) 3 kg m/s
(c) 2.5 kg m/s​

Answer 1

(d) 3 kg m/s is the correct Answer.

Answer 2

Momentum is (a) 10 kg m/s.

Given - Mass and velocity

Find - Momentum

Solution - Momentum is defined as "the quantity of motion of moving body".

As per the known fact, the relation between Momentum, mass and Velocity is as follows -

Momentum = mass*velocity

Momentum is vector quantity, hence, it has both magnitude and direction.

Keep the values in formula to find the value of momentum.

Momentum = 5*2

Performing multiplication

Momentum = 10 kg m/s.

Hence, the momentum is (a) 10 kg m/s.

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