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- The 50-ft measuring tape weighs 2.4 lb. Compute the span L of the tape to four significant figures.The two main cables of the Akashi Kaikyo suspension bridge in Japan have a span L=1990m and a sag H=223m. The loading on each cable is w0=444.7kN/m (without traffic) along the horizontal. Determine the corresponding maximum force in one of the cables.The horizontal boom carries the weight W=108lb at A. The boom is supported by the cables AB and AC. The tensions in the cables are TAB=120lb and TAC=160lb. Determine the single force R that is equivalent to three forces acting on the boom at A.
- The homogeneous bar AB weighs 25 lb. Determine the magnitudes of the forces acting on the bar at A and B. Neglect friction.The cable of the suspension bridge spans L=140m with a sag H=20m. The cable supports a uniformly distributed load of w0 N/m along the horizontal. If the maximum allowable force in the cable is 4 MN, determine the largest permissible value of w0.Cable AB supports the uniformly distributed load of 4 kN/m. If the slope of the cable at A is zero, compute (a) the maximum tensile force in the cable; and (b) the length of the cable.
- Determine the tensile force of the rope.The motorcycle weighs 151 kg and the driver weighs 64 kg. Dimensions l1 = 0,31 m ja l2 = 0,23 m Determine the support force on the rear tire.Determine the force on each element of the reinforcement and determine if the elements are in tension or in compression.
- The lever is held to the fixed shaft using the pin AB. If the couple is applied to the lever, determine the shear force in the pin between the pin and the lever.The post weighs 8 kN>m. Determine the internal normal force in the post as a function of x.Horizontal plates are connected to the bar AB whose length varies linearly from zero to HA, as shown. The total weight of the set of plates is W. Determine: The maximum shear stress in member AB and the torsional rotation at point B. The diameter of member AB is equal to d and its shear modulus is G.