Question

Шарик летит со скоростью 10м/с, ударяется о гирю весом 16 кг, какова скорость шарика после удара?

Answer 1

10*16=160м/с

один вопрос

откуда в воздухе гиря ಠ_ಠ

Answer 2

Calculation of the Ball's Velocity after Impact

To determine the velocity of the ball after impact, we can use the principle of conservation of momentum. According to this principle, the total momentum before the impact is equal to the total momentum after the impact.

The momentum of an object is calculated by multiplying its mass by its velocity. In this case, we have a ball with an initial velocity of 10 m/s and a mass of 16 kg. Let's denote the initial velocity as v1 and the mass as m1.

After the impact, the ball's velocity changes. Let's denote the final velocity as v2. The mass of the object it collides with, in this case, the weight, is 16 kg. Let's denote the weight's mass as m2.

According to the conservation of momentum, we can write the equation:

m1 * v1 = m1 * v2 + m2 * v2

Simplifying this equation, we get:

m1 * v1 = (m1 + m2) * v2

Now we can substitute the given values into the equation and solve for v2.

m1 = 16 kg (mass of the ball) v1 = 10 m/s (initial velocity of the ball) m2 = 16 kg (mass of the weight)

Substituting these values into the equation:

16 kg * 10 m/s = (16 kg + 16 kg) * v2

Simplifying further:

160 kg*m/s = 32 kg * v2

Dividing both sides of the equation by 32 kg:

v2 = 160 kg*m/s / 32 kg

Simplifying:

v2 = 5 m/s

Therefore, the velocity of the ball after the impact is 5 m/s.