# physics

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when a car goes around an 8-km track in 20-minutes. what is the average speed and velocity.

• physics -

8000 m/1200 s = .667 m/s

It ended up back at the same place at the same speed and direction so its velocities averaged out to zero.

• physics -

,,,,,

• physics -

acar ascleret from the rest 90km/h in 10s.what is acecleration?

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