Hanna tosses a ball straight up with enough speed to remain in the air for several seconds? a. what is the velocity of the ball when it reaches its highest point? b. what is the 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(caution 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