Задача на основе колеса автомобиля

Пожалуйста, помогите в решении этой проблемы.
Please explain this problem. It appears quite tough and I couldn’t understand it completely.

First you can find the energy on the initial position; since the energy is conserved (rolling friction does not make any work), you can take the derivative of the energy by time.

\frac {dE}{dT} = 0

From that you can find the initial angular acceleration

3 симпатии

Yeah, I got the answer correctly.

1 симпатия