Question

This runner completed a 100 meter race with a time of 13.75 seconds. what was her average speed

Answer 1

s = 100/13.75

s = 7.272727…/1

s = 7.27m/s 

Answer 2

Answer: 7.27 m/s

Explanation: The average speed of an object in an interval of time is the distance traveled by the object divided by the duration of the interval.

Distance traveled= 100 m

Time taken = 13.75 s

Average speed=$\frac{\text {distance traveled}}{\text {Time taken}}$

Average speed=$\frac{100m}{13.75s}=7.27m/s$