A weight W 4500 lb falls from a height h onto a vertical wood pole having length L 15 ft, diameter d 12 in , and modulus of elasticity E 1 6 Atilde 106 psi (see figure) If the allowable stress in the wood under an impact load is 2500 psi, what is the maximum permissible height h W 4,500 Ib d 12 in L 15 ft

Question: A weight W = 4500 lb falls from a height h onto a vertical wood pole having length L = 15 ft, diameter d =

A weight W = 4500 lb falls from a height h onto a vertical wood pole having length L = 15 ft, diameter d = 12 in., and modulus of elasticity E = 1.6 Ã— 106 psi (see figure).
If the allowable stress in the wood under an impact load is 2500 psi, what is the maximum permissible height h?

W 4,500 Ib d 12 in. L 15 ft

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