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Two balls of masses 4kg and 2kg move towards each other with a velocity of 4ms-1 and -2ms-1 respectively. if after collision they stick together and move with +2ms-1, what is

Respuesta :

onyebuchinnaji

The change in the momentum of the balls is -8 kg.m/s.

Initial momentum of the balls

The initial momentum of the balls is calculated as follows;

Pi = 4 kg(4 m/s) + 2 kg(2 m/s)

Pi = 20 kg.m/s

Final momentum of the balls

Pf = 2 m/s (4 kg + 2 kg)

Pf = 2 m/s (6 kg)

Pf = 12 kg.m/s

Change in momentum of the balls

ΔP = Pf - Pi

ΔP = 12 kg.m/s - 20 kg.m/s

ΔP = -8 kg.m/s

Thus, the change in the momentum of the balls is -8 kg.m/s.

Learn more about change in momentum here: https://brainly.com/question/25749514

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The complete question is below:

What is is the change in momentum of the balls?

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