An object with a mass of 5 kilograms is a distance of 5 meters above the surface of the earth. 

If the acceleration because of gravity is 10 meters per second squared, the potential energy of the object relative to the surface of the earth is:

a) 10 joules

b) 20 joules

c) 100 joules

d) 250 joules

e) none of the above

Ans- 250 Joules

 

Posted Date: 7/9/2013 8:53:43 AM | Location : United States

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