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Physics, 17.12.2020 21:20 emmaja121003

In compressed state, a spring 3.00 meters long hanging from the ceiling has a potential energy of 4.9 joules. If the entire potential energy is used to release a ball of mass 1.2 kilograms vertically downward, then what is the kinetic energy of the ball when it reaches the ground? a
1.2 joules

b
4.9 joules

c
2.0 joules

d
6.8 joules

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