Question

when you apply brakes to a car,in which direction is its acceleration?

Answer 1

Hello

The acceleration will be in the direction opposite to the motion of the car.
This this kind of acceleration which are opposite to the motion are called negative acceleration or simply retardation.

#cosmic

Answer 2

Acceleration is a rate of change in velocities...
When velocity of any object increses , there is an acceleration which is in the same direction of velocity...If velocity decreases acceleration act in the opposite direction...

So when we apply brakes acceleration acts in the opposite direction of the velocity of car as a result car slows down or stops...