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5) Sally has a mass of 50 kg. She ran with a velocity of 20 m/s.
What was her KE as she crossed the finish line?

Respuesta :

Answer:

10,000 J

Explanation:

The kinetic energy of an object can be found by using the formula

[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]

m is the mass

v is the velocity

From the question we have

[tex]k = \frac{1}{2} \times 50 \times {20}^{2} \\ = 25 \times 400 \\ = 10000[/tex]

We have the final answer as

10,000 J

Hope this helps you

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