Car's Final Velocity and Distance Traveled in Braking Period

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SUMMARY

The discussion focuses on calculating a car's final velocity and distance traveled during its braking period after an initial acceleration. The car accelerates at +1.3 m/s² for 5.9 seconds, reaching a velocity of 7.67 m/s before the brakes are applied. During the braking phase, which lasts 1.60 seconds with a deceleration of -2.1 m/s², the final velocity is determined to be 3.67 m/s. The total distance traveled from rest is calculated to be 30.76 meters.

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A car starts from rest and travels for 5.9 s with a uniform acceleration of +1.3 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.1 m/s2. The breaks are applied for 1.60 s.
(a) How fast is the car going at the end of the braking period?

(b) How far has the car gone from its start?
 
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https://www.physicsforums.com/showthread.php?t=94379

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