(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 5.0 kg block is pushed 3.0 meters at a constant velocity up a vertical wall by a constant florce applied at an angle of 30.0 degrees witht the horizontal. If the coefficient of kinetic friction between the block and the wall is 0.30, determine the following:

a) the work done by the force on the block

b) the work done by gravity on the block

c) the magnitude of the normal force between the block and the wall

2. Relevant equations

W=Fdcosø

W=mgh

Fn=mgcosø

3. The attempt at a solution

W=Fdcosø

W=mu*mgdcosø

W=.3*5*9.81*3*cos30

W=38.23J

w=mgh

w=5*9.81*3

fn=mg

fn=5*9.81*cos30

fn=42.48

I have a feeling that this is wrong. Any help would be most appreciated. Thanks.

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# Homework Help: Work and Force on a block of mass

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