Posted by **luc** on Thursday, April 2, 2009 at 9:05pm.

A turnbuckle is needed to apply an 8kN force on a cable. If the efficiency of the turnbuckle is 40% and the force applied is 159.155N with a lever of 20cm in length.

a) Find the mechanical advantage.

b) Find the velocity ratio.

c) Find the mean pitch of thread.

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