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Average acceleration = (change in speed) divided by (time for the change) =(15 - 0) / (5) = 15/5 =3 meters per second2
Average acceleration = change in speed/time for the change = 15/5 = 3 meters per second2 .
0 to the nearest hundred, for example.
60 mph = 88 feet per secondThe car's average speed during that 5 seconds is 1/2 of (0 + 88) = 44 feet per second.The distance covered is (average speed) x (time) = 44 x 5 = 220 feet
The car's average speed is 1/2 of (0 + 60) = 30 miles per hour.At 30 miles per hour, the car covers 396 feet in 9 seconds.