Question

explain that deceleration is a negative acceleration (5 marks)

Answer 1

Explanation:

Deceleration also known as retardation is always defined as the acceleration in the direction opposite to the direction of the velocity the velocity of the particle decreases with the passage of time. The slope of the curve is negative and the acceleration is negative.

Answer 2

Explanation:

Deceleration always refers to acceleration in the direction opposite to the direction of the velocity. Deceleration always reduces speed. ... Therefore, it has negative acceleration in our coordinate system, because its acceleration is toward the left.