Physics
General
Easy

Question

The upper half of an inclined plane of inclination theta is perfectly smooth while the lower half is rough A body starting from the rest at top come back to rest at the bottom, then the coefficient of friction for the lower half is given by……

  1. mu subscript s equals sin invisible function application space theta
  2. mu subscript s equals cot invisible function application space theta
  3. mu subscript s equals 2 space c os space invisible function application theta
  4. mu subscript s equals 2 tan space invisible function application theta

The correct answer is: mu subscript s equals 2 tan space invisible function application theta

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