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November 24, 2014

Homework Help: physics

Posted by joshua on Tuesday, October 26, 2010 at 10:49am.

A projectile of mass 1.450 kg is shot straight up with an initial speed of 20.0 m/s.

(a) How high would it go if there were no air friction?

(b) If the projectile rises to a maximum height of only 13.9 m, determine the magnitude of the average force due to air resistance.

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