A brick of mass 2 kg just begins to slide down on an inclined plane at an angle of 45 ° with the horizontal. The force of friction will be ( g = 9.8 m s - 2 )

Question

A brick of mass 2 kg just begins to slide down on an inclined plane at an angle of 45 ° with the horizontal. The force of friction will be ( g = 9.8 m s - 2 ), 19 .6 2 N, 9 .8 2 N, 19 . 6 N, 9.8 N

MARKS App · Accepted Answer

Friction force = m g sin ⁡ θ = 2 × 9 . 8 × sin 45 ° = 19 . 6 2 N

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