Question

A painter of weight 1000n stands 1.0 m from the left hand end of a uniform plank which is 5 m long and weighs 800n. The plank is supported by two trestles each 0.5m from the opposite ends. Two upward forces p and q are acting on the plank due to the trestles.

By taking movements about the left trestles calculate the upward force exerted on the other trestle.

Answer 1

Answer:

HEYY MATE...

The total upward force will be 9.8×10^15.

now u can calculate..

hope it helps... ❤✌..

Answer 2

Hi buddy

Here is your answer

For equilibrium, the sum of the moments must be zero:

For equilibrium, the sum of the moments must be zero:ΣM = F*4.0m - 1000N*0.5m - 800N*2.0m = Q*4.0m - 2100N·m

For equilibrium, the sum of the moments must be zero:ΣM = F*4.0m - 1000N*0.5m - 800N*2.0m = Q*4.0m - 2100N·mQ = 2100N·m / 4.0m = 525 N

Hope it help you

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