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Suppose a block of mass M is sliding down an inclined plane which makes an angle t with the horizontal. The coefficient of kinetic friction between the plane and the block is u (assume tan(t) > u). The block is initially at rest.
a) What is the work done by friction as the block travels a distance d along the plane?
b) What is the speed of the block at this point?
Two forces, of magnitude F1 = 80.0 N and F2 = 45.0 N, act in opposite directions on a block which sits atop a frictionless surface. Find the work W1 done on the block by the force of magnitude F1= 80.0 N as the block moves from xi = -1.00 cm to xf =..
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