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anonymous
 4 years ago
After scoring a touchdown, an 84.0 kg wide receiver celebrates by leaping 1.20m off the ground.
 what is the energy he gained by leaping forward?
anonymous
 4 years ago
After scoring a touchdown, an 84.0 kg wide receiver celebrates by leaping 1.20m off the ground.  what is the energy he gained by leaping forward?

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0A horizontal force of 5.0N acts on a 3.0kh mass over a distance of 6.0m along a horizontal frictionless surface. What is the change in the KE of the mass?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0it would be equal to w = mgd?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327642068642:dwdw:1327642099129:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0A 14, 700 N car is traveling at 25.0 m/s. The brakes are applied to stop as per attached figure . The average breaking force is 7100N  how much energy does the car lose in order to stop?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0 how much work is done on the car in order to stop it?  how far will it take the car to stop?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0All of these make use of the workenergy theorem. \[W = \Delta U\]where \(\Delta U = \Delta KE + \Delta PE\)
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