Question

A stone of mass 3kg is moving at a velocity of 10 m/s. If its

velocity is increased to 30 m/s, calculate the change in

momentum.​

Answer 1

Explanation:

intial velocity = 10

final velocity = 30

velocity = final velocity - intial velocity

change in velocity. = 30 - 10

change velocity = 20

therefore channge in momentum = m × v

momentum = 3 (20)

momentum = 60

.

method 2

intial momentum of 3kg in 10m/s = mxv = 30

final momentum of 3kg in 30 m/s= m Xv =90

therefore

change in momentum =

final momentum- intial momentum

90 - 30

= 60. .

Answer 2

Answer:

The answer to your question is 60 kgm/s

Explanation:

Mass = 3kg

Initial Velocity = 10m/s

Final velocity = 30m/s

As we know,

Change in momentum = mv (final) - mv (initial)

                                    = 3*30 - 3*10

                                    = 90 - 30

                                    = 60 kgm/s