SSC MTS EXAM

Detailed explanation-1: -If the speed is increasing, the car has positive acceleration. When the car slows down, the speed decreases. The decreasing speed is called negative acceleration. In both cases, the car is accelerating, but one acceleration is positive and one is negative.

Detailed explanation-2: -The deceleration will be computed by dividing the final velocity minus the initial velocity, by the amount of time is taken for this drop in velocity.

Detailed explanation-3: -Deceleration is the negative acceleration. When a body is decelerating, its speed is decreasing with time. Whereas acceleration indicates an increase in the speed of the object. Therefore, deceleration is the opposite phenomenon (negative) of acceleration.