25 5000375 2 21875 lbf in vmax 500 lbf same m and

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Unformatted text preview: 0 lbf 1 Mmax = 500(0.25) + (500)(0.375) 2 = 218.75 lbf · in Vmax = 500 lbf Same M and V O 500 M Mmax ∴ σ = 17.8 kpsi Ans. τmax = 3400 psi Ans. O 3-28 F l b a p2 p1 p1 + p2 x − l 1 + terms for x > l + a a p1 + p2 x − l 2 + terms for x > l + a V = − F + p1 x − l 1 − 2a p1 p1 + p2 M = −F x + x −l 2 − x − l 3 + terms for x > l + a 2 6a q = −F x −1 + p1 x − l 0 − At x = (l + a ) + , V = M = 0, terms for x > l + a = 0 − F + p1 a − p1 + p2 2 a =0 2a ⇒ p1 − p2 = 2F a (1)...
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