Question 1. A football of radius Ris kept on a hole of radius r(r

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Question 1. A football of radius Ris kept on a hole of radius r(r<R) made on a plank kept horizontally. One end of the plank is now lifted so that it
gets tilted making an angle e from the horizontal as shown in the figure below. The maximum value of 0 so that the football does not start rolling
down the plank satisfies (the figure is schematic and not drawn to scale)
Plank
R.
2r
Transcribed Image Text:Question 1. A football of radius Ris kept on a hole of radius r(r<R) made on a plank kept horizontally. One end of the plank is now lifted so that it gets tilted making an angle e from the horizontal as shown in the figure below. The maximum value of 0 so that the football does not start rolling down the plank satisfies (the figure is schematic and not drawn to scale) Plank R. 2r
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