- #1

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I tried using this equation:

K1 (becomes 0) +U1 = K2+U2 (becomes 0)

since the object would start from rest, K1=0. I will call the height of the object y=h, and the point at which it reaches required kinetic energy will be at y=0

U1 = K2

mgh = 1.33x10^6 J

h=(1.33x10^6 J)/(mg)

But that answer is wrong. The computer doesn't give me the right answer, but it says that one is wrong. Any thoughts? Thank you.

Ryan