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Lineman A (m = 100kg) is travelling with a velocity of 4 m/s when he collides...

Lineman A (m = 100kg) is travelling with a velocity of 4 m/s when he collides with Lineman B (m=90kg), who has a velocity of -4.5m/s. If momentum is conserved and Lineman B is completely stopped in his tracks, what happens to the velocity of Lineman A after the collision?

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Answer #1

let mA, mB be the masses of two lineman and their velocities be vA and vB

For conservation of angular momentum

i denotes the initial and f denotes the final

Putting the values,

This is the velocity of lineman A after collision.

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