A ball is thrown straight up with enough speed so that it is in the air for several seconds.
a. What is the velocity of the ball when it reaches its highest point?
b. What is its velocity 1 s before it reaches its highest point?
c. What is the change in its velocity during this 1-s interval?
d. What is its velocity 1 s after it reaches its highest point?
e. What is the change in velocity during this 1-s interval?
f. What is the change in velocity during the 2-s interval from 1 s before the highest point to 1 s after the highest point? (Caution: we are asking for velocity, not speed.)
g. What is the acceleration of the ball during any of these time intervals and at the moment the ball has zero velocity?
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