# p7 - Problem Set 7 Problem 7.1 Cable Force to Lift a Ramp...

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Problem Set 7 Problem 7.1 Cable Force to Lift a Ramp The ramp of a ship has a weight of 200 lb and a center of gravity at G . Determine the cable force in CD needed to just start lifting the ramp (i.e., so that the reaction at B is zero). Also, determine the horizontal and vertical components of force at the hinge A . Figure P7.1: Problem 7.1

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Problem 7.2 Force Reactions at Frictionless Connections Determine the reactions on the bent rod which is supported by a smooth surface at B and a frictionless collar at A . Figure P7.2: Problem 7.2
Problem 7.3 The links 1 and 2 shown in Fig. P7.3 are each connected to the ground at A and C , and to each other at B using frictionless pins. The length of link 1 is AB = l . The angle between the links is 6 ABC = θ . A force of magnitude P is applied at the point D ( AD = 2 l/ 3) of the link 1. The force makes an angle θ with the horizontal. Find the force exerted by the lower link 2 on the upper link 1. Numerical application: a) l = 1 m, θ = 30 , and

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p7 - Problem Set 7 Problem 7.1 Cable Force to Lift a Ramp...

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