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A worker wishes to pile up sand on to a circular area of radius R. No sand is to spill on to the surrounding area. If `mu_(s)` is the coefficient of static friction of sand on sand,the sand pile . Density of sand `=rho`

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The correct Answer is:
`mu_(s)R`
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NN GHOSH-MOMENT, TORQUE, EQUILIBRIUM OF BODIES-Exercises
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  20. A worker wishes to pile up sand on to a circular area of radius R. No ...

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