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Diffential equations question

  1. Sep 30, 2007 #1
    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.

    please help this.
  2. jcsd
  3. Sep 30, 2007 #2

    D H

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    Did you read the MUST READ sticky for this forum? "This forum is not for homework problems". Also, for any homework problem you must show some work before we will help you.
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