Question

Найдите кинетическую энергию автомобиля «Волга» (ГАЗ-24) массой 1450 кг, движущегося со скоростью 108 км/ч.

Answer 1

E=(mv^2)/2;

где 108 км/ч = 30 м/c

Е = 1450 * 30^2 / 2= 652500 Дж

Answer 2

Calculation of Kinetic Energy

To calculate the kinetic energy of the "Volga" car (GAZ-24) moving at a speed of 108 km/h, we can use the formula for kinetic energy:

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

Given: - Mass of the car (m) = 1450 kg - Velocity of the car (v) = 108 km/h

First, we need to convert the velocity from km/h to m/s, as the formula requires the velocity in meters per second.

1 km/h = 0.277778 m/s

Therefore, the velocity of the car in m/s is:

108 km/h * 0.277778 m/s = 30 m/s

Now, we can substitute the values into the formula to calculate the kinetic energy:

Kinetic Energy = (1/2) * 1450 kg * (30 m/s)^2

Kinetic Energy = 0.5 * 1450 kg * 900 m^2/s^2

Kinetic Energy = 653250 J (joules)

Therefore, the kinetic energy of the "Volga" car (GAZ-24) with a mass of 1450 kg, moving at a speed of 108 km/h, is approximately 653250 joules.