274_Physics ProblemsTechnical Physics

# 274_Physics ProblemsTechnical Physics - 276 P9.60 Linear...

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276 Linear Momentum and Collisions P9.60 (a) The initial momentum of the system is zero, which remains constant throughout the motion. Therefore, when m 1 leaves the wedge, we must have m v m v 2 1 0 wedge block + = or 3 00 0 500 4 00 0 . . . kg kg m s wedge b g b gb g v + + = so v wedge m s = 0 667 . (b) Using conservation of energy for the block-wedge- Earth system as the block slides down the smooth (frictionless) wedge, we have v = 4.00 m/s block v wedge +x FIG. P9.60 K U K K U K i i f f block system wedge block system wedge + + = + + or 0 0 1 2 4 00 0 1 2 0 667 1 1 2 2 2 + + = + L N M O Q P +
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