a-uniform-pine-plank-of-length-2-m-and-a-mass-of-15-kg-is-held-by-a-carpenter-an

Question

A uniform pine plank of length 2 m and a mass of 15 kg is held by a carpenter and his son. The carpenter applies a vertical force of magnitude 40 N at the left end. Find i) the magnitude and ii) the point of application of the force that the son should exert to maintain the board stable. Start by drawing a free-body diagram of the plank.

Accepted Answer

i) 107.15 N ii) 1.37 m from the left end

Answer

i) 147.15 N ii) 0.37 m from the right end

Answer

i) 147.15 N ii) 0.37 m from the left end

Answer

i) 107.15 N ii) 1.37 m from the right end

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