It is possible that the car could have accelerated to 55mph within 268 meters.
Acceleration is the time rate of change of velocity.
60 mph = 88 ft/sec and 55 mph = 80.7 ft/ sec
acceleration, a = 88/15 = 5.87 ft/s²
The maximum acceleration of the car, using third equation of motion,
2 a s = v₂² - v₁² = v²
s = v₂² / (2 a)
Substitute the values, we have
distance, s = 80.7² / (2 * 5.87) = 555 ft
but 555 ft / 3.28 ft/m = 169 m
Thus, the car could accelerate to 55 mph within 169 m.
Learn more about acceleration.
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