Tuesday
October 21, 2014

Homework Help: Physics

Posted by Matthew on Wednesday, October 7, 2009 at 8:47pm.

This is another problem that I need clarification on since no one seems to be of any help at my school,

A pulley system is used to lift a 52- crate.Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume the masses of the chains, pulleys, and ropes are negligible.

Determine the force required to lift the crate with constant speed.

Determine the tension in the upper chain, and lower chain.

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