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13-09-2022
Physics

Answered

a drag racer accelerates from rest at an average rate of 10m/s for a distance of 90 meters.The driver then coasts for 0.4 seconds and then uses the brakes and parachute to de accelerate until the end of the track
1.How long is the drag racer accelerating for?
2. If the total length of the track is 200 meters, what must be the de acceleration rate in order to stop right at the end of the track?

Answer :

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