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i posted the firt question please answer the second pic
A 2.0-kg block is released from rest at point A. The track is frictionless except for the rough portion between points B and
Assume g = 10 m/s A 4.0-kg block is released from rest at point A. The track is frictionless except for the rough portion bet
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hin m = 4kg, h= 3m, lesing energy conservation between A and B 크 migh I have ²+ o Ya velocity at point is T 2 B = agh - 2 VB=

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