Use the numbers 12,12,12,12,23,23,31,31,49 to add up to 100 exactly(not necessary to use all the numbers)..
2 answers:
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Answer:
The energy in object is 3.8 Kilo Joules.
Step-by-step explanation:
We are given the following in the question:
Mass = 20 kg
Height,h = 20 m
g=9.5 m/s^2
Formula:
Potential energy =
Putting value we get,
Thus, the energy in object is 3.8 Kilo Joules.