# Physics: Concepts and Connections, 4 th ed., Art Hobson Chapter 3 – Motion.

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Physics: Concepts and Connections, 4 th ed., Art Hobson Chapter 3 – Motion

A ball is thrown straight up. What is its acceleration when it momentarily stops at the highest point in its motion? A) zero B) 9.8 m/s 2 downward C) 9.8 m/s 2 upward D) The answer depends on the initial velocity of the ball.

A ball is thrown straight up. While the ball is in free fall, its acceleration A) increases B) decreases C) remains constant

If a ball is thrown down instead of dropped, its acceleration will be A) 9.8 m/s/s downward B) Greater than 9.8 m/s/s C) Less than 9.8 m/s/s D) Not enough information E)

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