# PHYSICS

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A race car's velocity increases from 3.6 m/s to 32.4 m/s over a 5-s time interval. What is its average acceleration?

• PHYSICS -

Velocity ansdspeed are the same number in this case since it keeps going in the same direction.

According to the definition of acceleration,

acceleration
= (velocity change)/(time interval)
= (speed change)/(time interval)

= (32.4 - 3.6)/5 m/s^2
= _______ m/s^2

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