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A block of mass 4kg is pressed against a...

A block of mass 4kg is pressed against a wall by two perpendicular horizontal forces as shown in the figure. `F _(1)` is prependicular to the wall and `F_(2)` is parallel to the wall. `mu_(s) =0.8, mu _(k) =0.5 and g = 10 ms ^(-2)`

For `F _(1) = 75 N and F _(2) = 30 N` and the block remains at rest on the wall then the force of friction is

A

30 N

B

40 N

C

50 N

D

45 N

Text Solution

Verified by Experts

The correct Answer is:
C
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