The steel plate is 0.3 m thick and has a density of 7850 kg> m3 . determine the location of its center of mass. also find the reactions at the pin and roller support.

answer  with full explanation is attached below

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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