A block is pressed against a vertical wall by a force ~P, as the drawing shows.

Question

A block is pressed against a vertical wall by a force ~P, as the drawing shows. This force
can either push the block upward at a constant velocity or allow it to slide downward
at a constant velocity. The magnitude of the force is dierent in the two cases, while
the directional angle is the same. Kinetic friction exists between the block and the
wall, and the coeffcient of kinetic friction is 0:250. The weight of the block is 39:0 N,
and the directional angle for the force ~P is = 30.0 degrees

find the magnitude of P when the block slides up, and when te block slides down

Explanation / Answer

Here is a similar question solved!!!Only values are changed!!! http://www.cramster.com/answers-oct-09/physics/force-block-pressed-vertical-wall-aforce_662368.aspx?rec=0 Hope this helps!!!

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