A person on a bridge 80 m above a stream sees a bottle drifting along at a constant speed. He drops a stone when the bottle has 7.2 m more to travel before passing under the bridge. The stone hits the water 2.32 m in front of the bottle. Calculate the speed of the drifting bottle.

Question

anonymous · Answer

I would find out how long it took the stone to go 80m first

anonymous · Answer

Then use the time taken for the stone to travel 80m and divide it into the total distance traveled by the bottle during the stone's free fall 7.2-2.32m.  That should get you to the velocity (m/s) of the bottle :D

anonymous · Answer

Solving for T in the Kinematic equation, I found T=2.02s for the stone to hit the stream. Then did 4.88m/2.02s to get V of the bottle. I got 2.42m/s as the velocity of the bottle in the stream

anonymous · Answer

do you understand all of this? or do you need further explanation?

anonymous · Answer

Im pretty sure I got it... Thanks!