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A block of mass 2 kg rests on a rough in...

A block of mass 2 kg rests on a rough inclined plane making an angle of `30^(@)` with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is

A

`9.8 B`

B

`0.7xx9.8 xxsqrt(3)N`

C

`9.8 xxsqrt(3)N`

D

`0.7 xx 9.8 N`

Text Solution

Verified by Experts

The correct Answer is:
a
Since ,`mu m g cos theta gt m g sin theta` force of friction is `f=m g sin theta`
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Knowledge Check

  • A block of mass m=2kg is resting on a rough inclined plane of inclination of 30^(@) as shown in figure. The coefficient of friction between the block and the plane is mu=0.5 . What minimum force F should be applied perpendicular to the plane on the block, so that blocks does not slip on the plane? (g=10m//s^(2))

    A
    2.68 N
    B
    Zero
    C
    4.34 N
    D
    6.24 N

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