In the figure, the hanging object has a mass of m1 = 0.420 kg; the sliding block has a mass of m2 = 0.850 kg, and the pulley is a hollow cylinder with a mass M = 0.350 kg, a interior radius R1 = 0.0200 m and an exterior radius R2 = 0.0300 m. Assume that the mass of the rays is negligible. The coefficient of kinetic friction between the block and the surface horizontal is µk = 0.250. The pulley rotates without friction on its axis. The lightweight cable does not stretch and does not slip on pulley. The block has a velocity of vi = 0.820 m / s towards the pulley when you pass a landmark on the table. (a) Use energetic methods to predict its velocity after it has passed a second point, which is at 0.700 m. (b) Find the angular speed of the pulley at the same moment.

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Q: image

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Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.