QUESTION IS RELATED TO SPECIAL RELATIVITY. THANK YOU. Two chunks of rock, each h

Question

QUESTION IS RELATED TO SPECIAL RELATIVITY. THANK YOU.

Two chunks of rock, each having a mass of 1.00 kg, collide in space. Just before the collision, an observer at rest in the reference frame of a nearby star determines that rock A is moving toward the star at 0.200 c and rock B is moving away from the star at 0.750 c Part A If the rocks stick together after the collision, what is their velocity (in the reference frame of the star) immediately after the collision? Consider the direction away from the star to be the positive direction Cu

Explanation / Answer

using conservation of momentum

mA vA + mB vB = (mA + mB) V

1 (- 0.200 Co) + 1 (0.750 Co) = (1 + 1) V

V = 0.275 Co

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