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A wooden block is placed on an inclined ...

A wooden block is placed on an inclined plane. The block just begins to slide down when the angle of the inclination is increased to `45^0`. The coefficient of the friction is

A

`0.25`

B

`0.75`

C

`1`

D

`0.5`

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The correct Answer is:
C
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A wooden block is placed on an inclined plane. The block just begins to slide down when the angle of the inclination is increased to 45°. What is the coefficient of the friction?

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