A locomotive of 90,000 kg is one third of the way across a bridge 90 m long. The bridge consists of a uniform iron girder of 900,000 kg, which rests at two piers. What is the load on each pier?

After an unfortunate accident occurred at a local warehouse, you were contracted to determine the cause. A jib crane collapsed and injured a worker. An image of this type of crane is shown in the figure.The horizontal steel beam had a mass of 88.50 kg per meter of length, and the tension in the cable was T = 12560 N. The crane was rated for a maximum load of P 500 kg. If d = 5.000 m, s = 0.558 m, x = 1.050 m, and h = 1.980 m, what was the magnitude of W1 (the load on the crane) before the collapse? The acceleration due to gravity is g = 9.810 m/s². 444.23 Wi = N Incorrect What was the magnitude of force Fp at the attachment point P? Fp = N

When a tension of 70 N is applied to a piano wire of length 1.8 m, it stretches by 2.0 mm. If the same tension is applied to a similar piano wire of length 3.6 m, by how much will it stretch?

Two builders carry a sheet of drywall up a ramp. Assume that W = 2.10 m, L = 3.20 m, 0 = 25.0°, and that the lead builder carries a (vertical) weight of 187.0 N (42.0 lb). What is the (vertical) weight carried by the builder at the rear? The builder at the rear gets tired and suggest that the drywall should be held by its narrow side. What is the weight (in N) he must now carry?