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OpenStudy (i_kyky):
PLEASE HELP A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s2.)
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OpenStudy (fwizbang):
Gravity is a conservative force. So the dog's KE just as he leaves the ground is equal to its PE at the highest point....
OpenStudy (i_kyky):
So formula KE=PE=mgh?
OpenStudy (fwizbang):
yep
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