Description : Let's get IceCream!! You have
a boat that has a fixed speed relative to the water, and you want to
get across the river. The simulation initially shows the boat aiming
straight across the river (and ending up downstream). There is a dock
(in blue) directly across the river .. it would be nice to get there.
But there is an IceCream place just upriver from the dock, it would be
BETTER to get there! See how many questions you can answer below before
changing the angle (hint - measure distance across, and distance
downriver, and time - that should allow you to calculate all
velocities!).
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Note: The calculation to pre-calculate the correct ice cream angle is challenging (beyond our standard effort) .. can you do it? (Hint, think of what physical direction we want to move the boat .. then play with the laws of sines and cosines.) |
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