What is the kinetic energy of a 200 g ball? At a speed of 10m / s.
| September 9, 2021 | education
m = 200 g = 0.2 kg
V = 10 m / s
Ek-?
1) 200 g = 0.2 kg. Since 1 kg = 1000 grams.
2) Ek = (m * V ^ 2) / 2 – the formula for the kinetic energy of the body.
Ek = (0.2 kg * 10m / s ^ 2) / 2 = (0.2kg * 100m ^ 2 / s ^ 2) / 2 = 10 J.
Answer: the kinetic energy of the ball will be equal to Ek = 10 J.
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