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July 1, 2015

Homework Help: Physics

Posted by Kayla on Thursday, April 28, 2011 at 9:55am.

A stationary 3.0-m board of mass 6.0 kg is hinged at one end. A force is applied vertically at the other end, and the board makes a 30 angle with the horizontal. A 40-kg block rests on the board 80 cm from the hinge as shown in the figure below.

a) Find the magnitude of the force F
b) Find the force exerted by the hinge.
c) Find the magnitude of the force Farrowbolditalic as well as the force exerted by the hinge (FH), if F is exerted, instead, at right angles to the board.

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