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A block of mass 4kg pressed againest a r...

A block of mass `4kg` pressed againest a rought wall by two perpendicular horizontal forces `F_(1) and F_(2)`as shown in figure Coefficient of static friction between the block and wall is `0.6` and that of kinetic friction is `0.5`

For the above data, what is the acceleration of block?

A

Zero

B

`(140)/(4)ms^(-2)`,upward

C

`(180)/(4)ms^(-2)`,upward

D

`(107.7)/(4)ms^(-2)`at an `tan^(-1)((2)/(5))` with the horizontal in the upward direction

Text Solution

Verified by Experts

The correct Answer is:
a
As `F_("applied") lt f_(D)` the block at rest
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