If it takes a bicyclist 20 seconds to reach a speed of 10 mph from rest, what is her acceleration? For the next 10 minutes, she moves at the constant speed of 10 mph, and at this time, she applies her brakes, and the bicycle decelerates to a full stop in 4 seconds. What is the total distance travelled by the bicyclist? Determine the average speed of the cyclist during the first 20 seconds, 620 seconds, and 624 seconds.
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