Average speed, start speed time?
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Hello i was wondering say the start speed is 2m/s then the acceleration is 3m/s^2 for 2 seconds, so the end speed is 6 m/s and the average speed is (2+6)/2=4 anyway i was wondering how long do you suppose the the start speed have been going? is it for one second or? cause every speed in the acceleration is going on for one second?
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Answer:
Say the start speed is 2m/s when t=0sec&acceleration a=3m/s^2 for 2second,the speed at the end of two second is v=2+3*2=8, average speed is (2+8)/2=5m/s this means from the acc&intial speed in every there is 5m/s
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