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April 20, 2014

Homework Help: Calculus

Posted by Desperate!!!! on Saturday, February 18, 2012 at 1:42pm.

A blast blows a rock straight up at 150 ft/sec. The path of the rock is described by the s(t) = 150t-16t^2 where s is measured in feet and t in seconds. Find the velocity of the rock when it is 200 ft above the ground and when the rock hits the ground.

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