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A block of mass m is placed over rough i...

A block of mass m is placed over rough inclined plane having inclination `30^(@)` .The co-efficient of friction between the block and inclined plane is 0.75.The contact force on the block is `x/4mg`. Find the value of x

A

`3/4 mg`

B

2 mg

C

`5/4 mg`

D

mg

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The correct Answer is:
D
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