Asked by Will
At time = 0 an automobile already traveling at 30 km/hr. accelerates at 3m/s2 for 2 seconds. During these two seconds, how far does it go? i still cant get this one right. i think im not doing the formula right
Answers
Answered by
drwls
First of all, 30 km/hr = 30,000 m/3600 s = 8.333 m/s
At the end of the 2 second interval, the speed is 6 m/s higher, or 14.333 m/s.
The average speed during the 2 second interval is 11.333 m/s.
Multiply that by 2.0 s for the distance travelled.
At the end of the 2 second interval, the speed is 6 m/s higher, or 14.333 m/s.
The average speed during the 2 second interval is 11.333 m/s.
Multiply that by 2.0 s for the distance travelled.
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