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Two block m and M tied together with an ...

Two block `m and M` tied together with an inextensible string are placed at rest on a rought horizontal surface with coefficient of friction `mu` The block `m` is pulled with a variable force `F` at a varying angle `theta` with the horizontal .The value of `theta` at which the least value of `F` is required to move the blocks given by

A

`theta = tan ^(-1)mu`

B

`theta gt tan ^(-1)mu`

C

`theta lt tan ^(-1)mu`

D

Insufficient data

Text Solution

Verified by Experts

The correct Answer is:
a
Minimum effert is required by pulling a block as the angle of friction
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Knowledge Check

  • A block of mass m is placed at rest on a horizontal rought surface with angle of friction phi . The block is pulley with a force F at an angle theta with the horizontal. The minimum value of F required to move the block is

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