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September 21, 2014

September 21, 2014

Posted by **JJ** on Saturday, January 8, 2011 at 3:13pm.

(A) From what height was the object dropped?

(B) What is the velocity of the object when it hits the ground?

(C) How long does the object fall?

- Physical Science -
**bobpursley**, Saturday, January 8, 2011 at 3:56pmm*g*h=13,230

solve for h.

final energy is 1/2 mv^2= 13230 solve for v

how long?

you know the final velcocity, so the average velocity is half that.

time= h/avgvelocity

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