February 26, 2017

Homework Help: physics

Posted by melad on Thursday, February 17, 2011 at 10:22am.

A box sits on a horizontal wooden board. The coefficient of static friction between the box and the board is 0.41. You grab one end of the board and lift it up, keeping the other end of the board on the ground. What is the angle between the board and the horizontal direction when the box begins to slide down the board?

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