Calculating Kinetic Energy for Solving PE and KE Problems

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To calculate kinetic energy (KE) from potential energy (PE), one must understand the principle of conservation of energy, which states that the total mechanical energy remains constant in a closed system. If a body is falling, the potential energy converts into kinetic energy as it descends. The equation for kinetic energy is KE = PE_initial - PE_final, where PE_final is zero at the lowest point. For a body falling from a height, the initial potential energy can be equated to the kinetic energy just before impact. Understanding these concepts will enable the calculation of KE based on the given potential energy values.
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Energy Question?

OK let's say that PE=15000 or 11250 J (J=Joules) how would you find out what the KE is?

just want to find out how to get the Kinectic Energy?
 
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I NEED HELP said:
OK let's say that PE=15000 or 11250 J (J=Joules) how would you find out what the KE is?

just want to find out how to get the Kinectic Energy?

Saying that potential energy is 11250J is meaningless really.
Is there some sort of problem associated with the potential energy? A body falling? Something of that sort?
 
ok then let's say it's a body falling how do i answer this...i don't want you to give me the answer i need help so i can understand this and solve it to get the answer on my own...
 

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