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What is the height of a 2.0 kilogram ball that is held above the floor and has 39 joules of potential energy ?
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What is the height of a 2.0 kilogram ball that is held above the floor and has 39 joules of potential energy ?

User Doug Porter
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1 Answer

3 votes

Answer:

Answer: the height h is 1.95 m above the floor

Step-by-step explanation:

m = 2.0 kilogram

Ep = 39 J

g = 10 m/s²

h = ?

Ep = mgh

h = Ep ÷ mg

h = 39 ÷ (2×10)

h = 39÷20

h = 1.95 m

User Chris Sutton
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