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April 23, 2014

Homework Help: calculus and physics

Posted by olivia on Monday, October 1, 2012 at 6:40pm.

An explosion causes debris to rise vertically with an initial velocity of 75 ft/sec.
a. In how many seconds does it attain maximum height?
b. What is the maximum height?
c. What is the speed of the debris as it reaches 12 ft on the way back to the ground?
d. What is the velocity of the debris at 20 ft on the way up

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