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A disk of mass m = 5 kg, Ic =mR3, and outer radius Ro =
0.9 m contacts an inclined surface with friction coefficient
H = 0.15 and ramp angle e = 36.8699°. An inextensible,
massless string is wrapped around an inner hub of radius R,
= 0.6 m. Use a work-energy argument to find the speed of
Ro
B
R,
the disk's center after the disk has moved d = 2 meters
downhill.
A
Ans: ve = 2.3537 m/s
u = 0.15

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