Question

Кинетические энергии снаряда массой 10 кг,летящего со скоростью 800ь/с,и автомобиля массой 3т,движущегося с постоянноц скоростью одинаковы.Скорость автомобиля?

Answer 1

$\frac{m_1v_1^2}{2} = \frac{m_2v_2^2}{2}$

$v_2 = v_1\sqrt{ \frac{m_1}{m_2}}$

v2 = 46.19 м/c

Answer 2

Calculation of Kinetic Energy

To calculate the kinetic energy of an object, we can use the formula:

Kinetic Energy (KE) = (1/2) * mass * velocity^2

Let's calculate the kinetic energy of the projectile and the car separately.

For the projectile: - Mass = 10 kg - Velocity = 800 m/s

Using the formula, we can calculate the kinetic energy of the projectile:

KE of projectile = (1/2) * 10 kg * (800 m/s)^2

To find the kinetic energy of the car, we need to know its velocity. Unfortunately, the given information does not provide the velocity of the car. Could you please provide the velocity of the car so that we can calculate its kinetic energy?