A particle is projected along a line of greatest slope on a rough plane inclined at an angle of 45 ° with the horizontal. If the coefficient of friction is 1 2 , then the retardation is

Question

A particle is projected along a line of greatest slope on a rough plane inclined at an angle of 45 ° with the horizontal. If the coefficient of friction is 1 2 , then the retardation is, g 2, g 2 2, g 2 1 + 1 2, g 2 1 - 1 2

MARKS App · Accepted Answer

The acceleration of the body on the incline is a = g sin ⁡ θ + μ cos ⁡ θ a = g sin ⁡ 4 5 ° + 1 2 × cos ⁡ 45 ° a = g 1 2 + 1 2 × 1 2 a = g 2 1 + 1 2 a = 3 g 2 2

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