Answer:
Both cars convert more kinetic energy to thermal energy.
Explanation:
Given that,
Two cars come to a stop from the same initial speed, one braking gently and the other braking hard.
We know that,
The conservation of energy :
The energy of the system is always constant.
The energy can be change one form to another form.
So, we can say that when both cars come to a stop from the same speed, one braking softly and the other braking strongly then both cars convert more kinetic energy to thermal energy.
Hence, Both cars convert more kinetic energy to thermal energy.
Based on the law of consevation of energy, the car that brakes hard will convert more kinetic energy to thermal energy.
According to the law of conservation of energy, the total energy is conserved in any closed system.
Since the cars have the same mass and had the same initial speed, their kinetic energies are the same.
However, the car braking hard comes to rest in a shorter time and in a shorter distance.
Using the formula for calculating power:
The car that braked hard will have greater power due to shorter time of action.
This power is seen as greater thermal energy, whereas some of the energy of the other car will still be used in travelling some distance before stopping.
Therefore, the car that brakes hard will convert more kinetic energy to thermal energy.
Learn more about kinetic energy and thermal energy at: https://brainly.com/question/3064483
