Question
The water in a river flows uniformly at a constant speed of 2.53 m/s between parallel banks 69.8 m apart. You are to deliver a package directly across the river, but you can swim only at 1.74 m/s.
(a) If you choose to minimize the time you spend in the water, in what direction should you head? ____° from the direction of the stream
(b) How far downstream will you be carried? ______m
(c) If you choose to minimize the distance downstream that the river carries you, in what direction should you head? ____° from the direction of the stream
(d) How far downstream will you be carried? _____m
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I know we're dealing with motion in 2D, but I don't even know which equations to use or how to start. Any help or jumpstarts will be greatly appreciated.
(a) If you choose to minimize the time you spend in the water, in what direction should you head? ____° from the direction of the stream
(b) How far downstream will you be carried? ______m
(c) If you choose to minimize the distance downstream that the river carries you, in what direction should you head? ____° from the direction of the stream
(d) How far downstream will you be carried? _____m
-----------------
I know we're dealing with motion in 2D, but I don't even know which equations to use or how to start. Any help or jumpstarts will be greatly appreciated.
Answers
alyce
maybe go with the current to cross faster and upstream to make a shorter distance
I'm only in gr.9 but I hope this helps
I'm only in gr.9 but I hope this helps