A race car traveling at +44 m/s

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SUMMARY

A race car traveling at +44 m/s is uniformly accelerated to a velocity of +22 m/s over an 11-second interval. This scenario illustrates that the term "deacceleration" refers to acceleration in the opposite direction of the initial velocity, which can still be considered acceleration. The discussion clarifies that even when a vehicle slows down, it is undergoing uniform acceleration, just in the opposite direction of its initial speed.

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A race car traveling at +44 m/s is uniformly accelerated to a velocity of +22 m/s over an 11-s interval. What is the displacement during this time?

(Don't solve it)

Why is the car being accelerated from +44 m/s to +22 m/s . . . wouldn't it be deacceleration?
 
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figured it out

heh, deacceleration is acceleration just in the opposite direction; therefore, deacceleration can be positive or negative.

Thanks Royhaas!
 


The car is being uniformly accelerated from +44 m/s to +22 m/s, meaning that the acceleration is constant and in the same direction as the initial velocity. This can happen if the car is slowing down, but at a constant rate. So, the car is still accelerating, just in the opposite direction of its initial velocity.
 

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