Physics
posted by Annette .
a 5kg block is pushed 3m up a vertical wall with constant speed by a constant force of magnitude f applied at an angle of 30 degrees with the horizontal. if the coefficient of kinetic friction between block and wall is .3, determine the work done by a) f b) the force of gravity c) the normal force between block and wall. d) by how much does the gravitational potential energy increase during the block's motion?
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