Combine swimming and running to get to the final point the quickest

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  • #26
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I'm not sure about that. Using Snell's law was a clever idea, but maybe you should check with some conventional calculus.
and calculus approach??
 
  • #27
PeroK
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and calculus approach??
If you got the answer using Snell's law, then great. That was very good.
 
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  • #28
98
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I'm not sure about that. Using Snell's law was a clever idea, but maybe you should check with some conventional calculus.
is calculus approach has something to do with properties of right angle and Pythagoras theorem?
 
  • #29
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If you got the answer using Snell's law, then great. That was very good.
ohk moving on to next ques thanks for help :)
 
  • #30
PeroK
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is calculus approach has something to do with properties of right angle and Pythagoras theorem?
Using calculus you need to minimise ##(1 + \frac w v) \sec \alpha - \frac u v \tan \alpha##. Which you do by usual differentiation method.
 
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