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musickatia [10]
3 years ago
9

An object has 100J of KE. It has a mass of 10kg. How fast is it travelling

Physics
1 answer:
MissTica3 years ago
4 0

k =  \frac{1}{2} mv {}^{2}
100 =  \frac{1}{2}  \times 10 \times v {}^{2}
100 = 5v {}^{2}
v {}^{2}  = 20
v =  \sqrt{20}  = 2 \sqrt{5}
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