The average speed of the Nicki would be 5 km/hr
The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is meter/second. The generally considered unit for speed is a meter per second.
The mathematical expression for speed is given by
average speed = total distance /Total time
As given in the problem Nicki rides her bike at a constant speed for 6 km. That part of her ride takes her 1 hour. She then rides her bike at a constant speed for another 9 km. That part of her trip takes her 2 hours,
Total distance traveled by the Nicki = 6+9
=15 km
The total time = 1 + 2
=3 hours
Average speed = 15/3
=5 km/hr
Thus, her average speed comes out to be 5 km/hr.
Learn more about speed from here,
brainly.com/question/7359669
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