A ball is thrown up in the sky. After reaching a height, the ball falls back. What can be said about the average velocity? a) It is non zero b) It is zero c) It is greater than zero d) It is less than zero
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A ball is thrown up in the sky. After reaching a height, the ball falls back. What can be said about the average velocity?
a) It is non zero
b) It is zero
c) It is greater than zero
d) It is less than zero
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