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Julli [10]
3 years ago
7

Which of the following best describes a completely elastic collision?

Physics
1 answer:
IRISSAK [1]3 years ago
3 0
The kinetic energy before equals K after
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\huge\fbox{Answer ☘}

acceleration \:  =  \frac{v - u}{t}  \\  =  >  \frac{80 - 60}{10}  \\ \\   =  >  \frac{20}{10}  \\  \\  =  > 2m \: s {}^{ - 2}

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