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April 19, 2015

Homework Help: math/physics

Posted by cyrus on Saturday, November 8, 2008 at 10:50pm.

a ball with mass 0.15 kg is thrown upward with initial velocity 20 m/sec from the roof of a building 30 m high. there is a force due to air resistance of |v|/30, where velocity v is measured in m/sec.
a. find the maximum height above the ground the ball reaches.
b. find the time the ball hits the ground.

you cannot use the kinematic equations.

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