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Physics, 20.07.2019 12:20 alott1121

Two railway trucks of masses m and 3m move towards each other in opposite directions with speeds 2v and v respectively. these trucks collide and stick together. what is the speed of the trucks after the collision? a v/4 b v/2 c v d 5v/4

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Two railway trucks of masses m and 3m move towards each other in opposite directions with speeds 2v...
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