First slide

Friction on inclined plane of angle more than angle of repose

Question

A body is sliding down an inclined plane forming an angle 30° with the horizontal. If the coefficient of friction is 0.3 then acceleration of the body is

Easy

A

1.25.ms^-2
B

2.35ms^-2
C

3.4ms^-2
D

4.9ms^-2

Solution

$a = g (\sin θ - μ_{k} \cos θ)$

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