Homework Help: Math

Posted by Chandler on Monday, October 4, 2010 at 5:38pm.

A baseball is thrown up in the air from a height of 3 feet with an initial velocity of 23 feet per second. When does the baseball hit the ground?

Math - bobpursley, Monday, October 4, 2010 at 5:40pm
hf=hi+vi*t-16t^2
0=3+23*t-16t^2

this is a quadratic, solve it with the quadratic equation. I find it odd that Old English units (feet) are being used here, you must have a very old text, or a very old teacher.

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