Dynamics p7.84 Gray 2nd edition engineering mechanics Determine as a function of

Question

Dynamics p7.84 Gray 2nd edition engineering mechanics

Determine as a function of theta the normal force (N ) and the frictional force (F) exerted by the ground on the rod as the rod falls over. Knowing that the rod will slip when |F/N| exceeds mu s, determine whether the rod will slip as it falls. Plot F/(mg), N/(mg), and |F/N| as a function of theta for 0 theta pi/2 rad. Use those plots to show that for smaller values of mu, end A of the rod slips to the left, and for larger values of mu s, it slips to the right. Figure P7.83 and P7.84

Explanation / Answer

F=3/4mg(3 costheta- 2)/ sin theta  and N=1/4mg.(1 - 3 cos) ^2 (b) Given any (finite) value of s , there always is a value of  for which the rod will slip

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