Answer to Question #58102 in Optics for Christbeauty

Question

1 The rope shown in the figure attached hereto is wound around a cylinder of of mass 4.0 kg, radius 10cm and
I=0.020kgm2
, where
I
is the moment of inertia about an axis along the cylinder axis. If the cylinder rolls without slipping, what the linear acceleration of its centre of mass?
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6.7m/s2
3.3m/s2
11.2m/s2
1.5m/s2

2 The frictional force between the block and the table is 20 N. If the moment of inertia of the wheel is
4.0kgm2
, find how long it will take the block to drop
60cm
after the system is released.
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7.37 s
1.34 s
3.71 s
4.22 s