If an elevator is descending toward the ground floor of a building and slowing down, then its: Group of answer choices a. velocity points downward and its acceleration points downward. b. velocity points upward and its acceleration points downward. c. velocity points downward and its acceleration points upward. d. velocity points upward and its acceleration points upward.

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!