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Inclined Planes and Component Forces
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Grade Level
Physics
12.39 Inclined Planes and Component Forces
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A block slides up a 25 degree rough incline and comes momentarily to rest. If mu_s = 0.60, what happens next?
A
It immediately slides back down because gravity always wins on an incline.
B
It remains at rest because static friction can balance the downslope component of weight.
C
It continues accelerating up the ramp because friction reverses direction at rest.
D
It leaves the surface because the normal force becomes zero.
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