Two hockey players of opposite teams while trying to hit a hockey ball on the ground collide and immediately become entangled. One has a mass 85kg and was moving with a velocity 6ms-1 while the other has the mass of 70kg and was moving faster with a velocity of 8ms-1 towards the first player. With what velocity will they move after they become entangled?
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-30/115 m/sec
Explanation:
When the two players get entangled, it means that both move together after collision. let their speed be v m/s.
we apply the law of conservation of momentum.
60 kg * 5 m/s - 55 kg * 6 m/s = (60 + 55) kg * v
v = - 30/115 m/sec.
So they will move together in the direction of 55 kg person with a velocity of 30/115 m/sec.
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