For the collar and rod of Prob. 12.56, and assuming that the coefficients of friction are ?s = 0.25 and ?k = 0.20, indicate whether the collar will slide on the rod if it is released in the position corresponding to(a) ? = 75?,(b) ? = 40?. Also, determine the magnitude and direction of the friction force exerted on the collar immediately after release.

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00 B I F 10 1 V 500 mm 3055