A disc of mass and radius can rotate freely in a vertical plane about a horizontal axis at distance from the centre of the disc as shown in Figure. The disc is released from rest in the shown position. Answer the following questions based on the above information
The angular acceleration of the disc when rotates by an angle of is |
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a) |
b) |
c) |
d) |
A disc of mass and radius can rotate freely in a vertical plane about a horizontal axis at distance from the centre of the disc as shown in Figure. The disc is released from rest in the shown position. Answer the following questions based on the above information
The angular acceleration of the disc when rotates by an angle of is |
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a) |
b) |
c) |
d) |
(a)
From ,
From energy conservation,
For FBD of the disc,