Acar moving south speeds up from 10 m/s to 40 m/s in 15 seconds. what is the car’s acceleration?

Answer : The car’s acceleration is,

Solution :

Acceleration : It is defined as the change in the velocity of an object with respect to the time.

Formula used :

where,

a = acceleration of car = ?

= final velocity of car = 40 m/s

= initial velocity of car = 10 m/s

t = time taken = 15 s

Now put all the given values in this formula, we get the acceleration of car.

Therefore, the acceleration of car is,

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation: