Fig. p3.9, p3.10, and p3.11 it is known that a force with a moment of 960 n m about d is required to straighten the fence post cd. if the capacity of winch puller ab is 2400 n, determine the minimum value of distance d to create the specified moment about point d.

Apinion having 30 involute teeth of 6,5 module rotates at 220 r/min and transmits 2 kw to a gear wheel having 70 teeth; the addendum on both wheels is 4 of the circular pitch and the angle of obliquity is 200. determine; 3.1 the lengths of the path of approach and the arc of approach 3.2 the normal force between the teeth at an instant when there is only one pair of teeth in contact