When you work out it helps clear your thoughts and think of nothing. It makes you feel good.
The correct answer is refraction.
Nacl is the answer hahahahaah ha
Explanation :
It is given that,
Mass of the car, m = 1000 kg
Force applied by the motor, 
The static and dynamic friction coefficient is, 
Let a is the acceleration of the car. Since, the car is in motion, the coefficient of sliding friction can be used. At equilibrium,




So, the acceleration of the car is
. Hence, this is the required solution.