5 17 A Shell Is Fired With A Muzzle Velocity V 1000 Ft S 1 At An Angle Of 45 With The Horizontal Its Motion Is Resis 1 (27.23 KiB) Viewed 57 times
5 17 A Shell Is Fired With A Muzzle Velocity V 1000 Ft S 1 At An Angle Of 45 With The Horizontal Its Motion Is Resis 2 (14.03 KiB) Viewed 57 times
5.17 A shell is fired with a muzzle velocity v = 1000 ft s-1 at an angle of 45° with the horizontal. Its motion is resisted by a force proportional to the cube of its velocity (F =-kv%). The coefficient k is such that the resisting force is equal to twice the weight of the shell when v = 1000 fts-1. Find the approximate maximum height attained hmax, and the horizontal range R by numerical integration, and compare these with the values expected in the absence of resistance.
5.17 h max 5 x 108 ft, R=1.6 x 104 ft
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