A projectile weighing 64 lb is fired directly upward with a velocity 2000 ft/sec. Assume that the accerleration due to gravity is constant, and the air resists the motion with a force proportional to the velocity. When the velocity is 1000 ft/sec, the resisting force is 20 lb. Find the maximum height attained by the projectile, and the time required for it to reach this height.(adsbygoogle = window.adsbygoogle || []).push({});

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# Diffential equations question

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