For which car – with a mass m or a mass 2 m – will it take more time to brake at the same speed of their movement?

More time to brake at the same speed is required for a car with a lower mass, as it is less inert.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.