The kinetic energy of the bullet is 0.75 J, and its mass is 15 g. Determine the speed of the bullet.
| May 27, 2021 | education
W = 0.75 Joules – kinetic energy of a bullet;
m = 15 grams = 0.015 kilograms is the mass of the bullet.
It is required to find the bullet velocity v (m / s).
v = (2 * W / m) ^ 0.5 = (2 * 0.75 / 0.015) ^ 0.5 = (1.5 / 0.015) ^ 0.5 = 100 ^ 0.5 = 10 m / s …
Answer: bullet speed is 10 m / s.
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