FrictionHard
Question
A wooden block of mass m resting on a rough horizontal table (coefficient of friction = μ) is pulled by a force F as shown in figure. The acceleration of the block moving horizontally is :
Options
A.
B.
C.
(cos θ + μ sin θ) − μ g
(cos θ + μ sin θ) − μ g D.none
Solution
The normal reaction on the block is
N = mg − F sinθ
∴ Net force on block is
Fcosθ − μN = Fcosθ − μ mg + μFsinθ
or acceleration of the block is
a =
(cosθ + μsinθ) − μg Create a free account to view solution
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