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Physics
Physics
Problem
A metal cylinder placed on an adjustable wooden plank starts sliding when the plank makes an angle of
28
∘
28^{\circ}
2
8
∘
with the horizontal. The coefficient of static friction between the cylinder and the plank is closest to a)
0.59
0.59
0.59
b)
0.47
0.47
0.47
c)
0.53
0.53
0.53
d)
0.65
0.65
0.65
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