A painter is raising himself and the crate on which he stands with an acceleration of $5 m / s^{2}$ by a massless rope–and– pulley arrangement. Mass of painter is $100 k g$ and that of the crate is $50 k g$ . If $g = 10 m / s^{2}$ , then

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force of contact between painter and the floor is $750 N$

tension in the rope is $2250 N$

tension in the rope is $1125 N$

force of contact between the painter and the floor is $375 N$

answer is B, D.

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Detailed Solution

For painter,

$(N + T) - 100 g = 100 \times 5$

For crate ,

$T - (N + 50 g) = 50 \times 5$

After solving above equations, we get

$T = 1125 N$

$N = 375 N .$

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