164_Dynamics 11ed Manual

164_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 13 horizontal plane is μ k . Neglect the mass of the pulleys and cord. Given: W A 10 lb = v A0 6 ft s = t 2s = W B 4lb = k 0.2 = g 32.2 ft s 2 = Solution: Ls B 2 s A + = Guesses a A 1 ft s 2 = a B 1 ft s 2 = T 1lb = Given T k W B W B g a B = 2 TW A W A g a A = 0 a B 2 a A + = T a A a B Find Ta A , a B , () = T 3.385 lb = a A a B 10.403 20.806 ft s 2 = v A v A0 a A t + = v A 26.8 ft s = Problem 13-25 A freight elevator, including its load, has mass M e . It is prevented from rotating due to the
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