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A kid has 650 Joules of potential energy when they are the top of their swing. If the height is 1.3 meters, what is the mass of the kid?
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1 vote
A kid has 650 Joules of potential energy when they are the top of their swing. If the height is 1.3 meters, what is the mass of the kid?

User Tang Chanrith
by
6.5k points

1 Answer

5 votes

Answer:

51kg

Explanation:

GPE=mass×gravitational field strength×height

so...

mass=GPE/gravitational field strength×height

gravition field strength on earth=9.81

650/9.81×1.3=50.968...

User Rcarrington
by
7.7k points
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