# physics

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A drag racer, starting from rest, speeds up for 402 m with an acceleration of +18.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -6.30 m/s^2. How fast is the racer moving 2.70 x 10^2 m after the parachute opens?

• physics -

find the velocity after 402m

Then, using that velocity for the initial velocity vi for the deacceleration time,

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