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Figure-1.52 showns a hemisphere and a su...

Figure-1.52 showns a hemisphere and a supported rod. Hemisphere is moving in right direction with a uniform velocity `v_(2)` and the end of rod which is in contact with ground is moving in left direction with a velocity `v_(1)`. Find the rate at which the angle `theta` is changing in terms of `v_(1), v_(2)`, R and `theta`.

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