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Grade 12th pass9 grade science

The brakes on your car can slow you at a rate of 5.2m/s2. If you are going 137km/h and suddenly see a state trooper, what is the minimum time in which you can get your car under the 90km/h speed limit? (The answer reveals the futility of braking to keep the high speed from being detected with a radar or laser gun.)

Profile image of Harshit Singh
4 Years agoGrade 12th pass
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