A rock is thrown upward from the level ground insuch a way that the maximum height of its flight is equal toits horizontal range R. (a) At what angle θ is the rock thrown?(b) In terms of the original range R, what is the range Rmax therock can attain if it is launched at the same speed but at theoptimal angle for maximum range? (c) Would your answer topart (a) be different if the rock is thrown with the same speedon a different planet? Explain.

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A rock is thrown upward from the level ground in
such a way that the maximum height of its flight is equal to
its horizontal range R. (a) At what angle θ is the rock thrown?
(b) In terms of the original range R, what is the range Rmax the
rock can attain if it is launched at the same speed but at the
optimal angle for maximum range? (c) Would your answer to
part (a) be different if the rock is thrown with the same speed
on a different planet? Explain.

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