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August 29, 2014

Homework Help: physics

Posted by kacey on Thursday, August 9, 2012 at 10:47am.

A 150 N block is at rest on a table, a cable is connected from this block to another hanging off of the table. This block is 75 N. What is the magnitude of the minimum force of static friction on the 150 N block required to hold both blocks at rest?

What would the coefficient of static friction between the 150 N block and the table have to be to ensure that both blocks would be held at rest?

I know the answers are 75 N and .5, but i need an explanation on how to get these answers!

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