The 0.1-lb projectile A is subjected to a drag force of magnitude kv 2 , where the

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The 0.1-lb projectile A is subjected to a drag force of magnitude kv2, where the constant k = 0.0002 lb-sec2/ ft2. This drag force always opposes the velocity v. At the instant depicted, v = 100 ft/sec, θ = 45°, and r = 400 ft. Determine the corresponding values of r¨ and θ¨.

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Engineering Mechanics Dynamics

ISBN: 9781118885840

8th Edition

Authors: James L. Meriam, L. G. Kraige, J. N. Bolton

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