First slide

Angle of repose

Question

A brick of mass 2kg just begins to slide down on inclined plane at an angle of 45º with the horizontal. The force of friction will be

Moderate

A

19.6 sin 45º
B

9.8 sin 45º
C

19.6 cos 45º
D

9.8 cos 45º

Solution

f = mg sin $θ$

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