a bicyclist initially at rest speeds up steadily during this time interval she averages 3.50 miles per second determine the initial speed average speed and final speed during the time interval

Given parameters:

Average speed = 3.5miles per second

Unknown:

Initial speed = ?

Average speed = ?

Final speed in the interval = ?

Solution:

Since the bicyclist started from rest and speeds up steadily, it is correct to assume that her starting or initial speed is 0m/s.

At a state of rest, a body has no speed.

Average speed is the sum total of the speed covered at each time interval. This value is given already to be 3.5miles per second.

Final speed is the speed before the bicycle halts. This speed will be the same as the average speed here which is 3.5miles per second.

Speed is the rate of change of distance with time.