Find the kinetic energy of a ball with a mass of 100 g, which moves at a speed of 18 km / h.
| December 14, 2020 | education
E kinetic = mv ^ 2/2
m = 100 g = 0.1 kg
v = 18 km / h
We substitute in our formula:
E kinetic = 0.1 * 18 ^ 2/2 = 32.4 / 2 = 16.2 J
Answer: E kin. = 16, 2 J.
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