A block lies on a frictionless inclined plane tilted at an angle of 35o to the horizontal.
(a) Draw the free-body diagram for the block.
(b) Determine the block's acceleration as it slides down the inclined plane. Is your answer reasonable? Why or why not?
(c) If the block started from rest 8.5 m up the incline from its base, determine the block's speed when it reaches the bottom of the incline.