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Image for Can cars stop on a dime? Calculate the acceleration of a 1400-kg car if it can stop from 35 km/h on a dime (di

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Answer #1

average braking reaction time 0.67 s, 35 km/h to m/s 35*0.278-9.73 m/s distance traveled for reaction time 9.73 m/s*0.67 6.5191 m distance traveled for deceleration 9.73(2 9.8) 4.83 m total distance traveled 4.83+6.52-11.35 m can not use this method to stop on a dime si .7 cm-0.017 m, 9.73/(0.017 2)-2784.5 m/s219.81 m/s2 283.843 g method 2 range-1/2 vo la

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Answer #2

The initial velocity (u)- 35kmhr-9.2m/s As the car stops, so the final velocity(v) is 0 Distance taken to stop- diameter of t

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