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Deceleration is described as acceleration in which direction?
AThe same as velocity
BPerpendicular to motion
CVertically downward
DOpposite to the velocity
Answer & Solution
Correct answer: D. Opposite to the velocity
1. Deceleration is a statement about direction, not sign alone.
2. Acceleration is a vector, so it has a direction.
3. Deceleration always refers to acceleration in the direction opposite to the velocity.
4. That is what makes an object slow down.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 2 'Kinematics', sections 2.1-2.8_
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