Question

Легковой автомобиль массой 800 кг движется со скоростью, модуль которой равен 20 м/с. Определите кинетическую энергию

Answer 1

E=m*v^2/2 E=800*400/2= 160000 дж или 160Кдж

Answer 2

Calculation of Kinetic Energy

To calculate the kinetic energy of a car, we can use the formula:

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

Given that the car has a mass of 800 kg and is moving with a velocity of 20 m/s, we can substitute these values into the formula to find the kinetic energy.

Kinetic Energy = (1/2) * 800 kg * (20 m/s)^2

Calculating this expression, we find:

Kinetic Energy = 160,000 Joules

Therefore, the kinetic energy of the car is 160,000 Joules.