A horizontal arm, capable of rotation about a vertical shaft, carries a mass of 2.5 kg, bolted to it by a 1 cm bolt at a distance of 50 cm from the axis of the shaft. The axis of the bolt is vertical. if the ultimate shearing strength of the bolt is 50 MN/ m 2, at what speed will the bolt snap?
Total force is the sum of weight due to gravity and centripetal force acting
Total force= Ultimate shear stress of bolt x cross section area of bolt
Weight due to gravity=m*g=2.5*9.81=24.52N