Question

A ball is thrown vertically upward, which is the positive direction. A little later it returns…

A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release.

(a) Does the acceleration of the ball reverse direction when the ball starts its downward trip: YES or NO ?

(b) What is the displacement of the ball when it returns to its point of release?
___________ m

(c) If the ball is in the air for a total time of 8.9 s, what is its initial velocity?
__________ m/s

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