<p>A 5kg block is pushed 3m at a constant speed up a vertical wall by a constant force applied at an angle of 30 degrees with the horizontal as shown in the diagram below. If the coefficient of kinetic friction between the block and the wall in .30 determine:</p>
<p>a) the work done buy the force on the block</p>
<p>b) the work done by gravity on the block</p>
<p>c) the normal force between the block and the wall</p>
<p>This is my exam review question and I’m lost :(</p>
<p>Hint: If you have more than one question, you can still post them in the same thread.</p>
<p>a. Well work = Fxcostheta. Determine the force needed to move the block at a constant speed factoring in the fact that you’re increasing the normal force on account of pushing into the wall.
b. Force due to gravity times distance. Since the force is in the opposite direction of movement, this should be negative.
c. Since the block is not moving in the x direction, the force i n the x direction must be negated by a normal force.</p>