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Tennis ball A is released from rest 5 0 meters above the ground. Tennis ball B is thrown upwards with an initial speed of 1
Tennis ball is released from rest meters above the ground. Tennis ball is thrown upwards with an initial speed
of meters per second from a height of meters above the ground. Tennis ball is directly below tennis ball A and
tennis ball is dropped at the exact moment that tennis ball is thrown upwards.
a How long will it take for the tennis balls to collide?
b What is the velocity of each tennis right before the collision? In particular, which way is tennis ball moving?
c When they collide, what is their height above the ground and how far did each tennis ball travel?
d Now suppose the initial speed of tennis ball is unknown but everything else is the same Suppose tennis balls
and collide when is at its maximum height above the ground. What was the initial speed of tennis ball
e Let's again suppose the initial speed of tennis ball is unknown but everything else is the same What is the
maximum initial speed of tennis ball such that tennis ball reaches the ground before it comes into contact with tennis
ball
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