Can anyone help me with any of these 3 questions?(adsbygoogle = window.adsbygoogle || []).push({});

1. Wrongly called for a foul, any angry basketball player throws the ball straight down to the floor. If the ball bounces straight up and returns to the floor 2.5s after first striking it, what was the ball's greatst height above the floor?

(ok, so I know that its a symmetrical motion but I don't think I can do anything unless I can get either an initial or final velocity...any suggestions?)

2. Standing side by side, you and a friend step off a bridge at different times and fall for 1.6s to the water below. your friend goes first and you follow after he has dropped a distance of 2m. When your friend hits the water, what is the distance of separation between you two?

(I'm confused with the concepts of this Q and how to approach it...can anyone give me a few tips or so?)

3. The force of water resistance on a swiming whale can be approsimated by F = bv where v is the swiming speed, b is a constant with units N x s/m. Find the maximum speed of the whale, assuming it can produce a power P?

(Ans: root(p/b))

(With this Q, I just thought F/b will give v...but how come there's a root in there?)

Thanks.

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# Homework Help: Force and free fall

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