Question

При выстреле пуля массой 20 гр имеет кинетическую энергию 4600 Дж. Какова скорость пули?​

Answer 1

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Answer 2

Calculating the Velocity of the Bullet

To calculate the velocity of the bullet, we can use the formula for kinetic energy:

Kinetic Energy (KE) = 0.5 * mass * velocity^2

Given: - Mass of the bullet (m) = 20 g = 0.02 kg - Kinetic Energy (KE) = 4600 J

Using the formula, we can rearrange it to solve for velocity:

Velocity (v) = sqrt(2 * KE / m)

Substitute the given values into the formula to find the velocity of the bullet.

Velocity (v) = sqrt(2 * 4600 / 0.02)

Calculating the velocity: Velocity (v) ≈ 214.42 m/s

So, the velocity of the bullet is approximately 214.42 m/s.