Answer:
5.10 m/s
The "m/s" means "meters per second". The value is approximate.
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Explanation:
Recall that
distance = speed*time
which we can isolate the speed to get
speed = distance/time
You divide both sides by time and flip both sides.
So that explains why for example Nate's speed is (50 meters)/(10 seconds) = 5 m/s. The other runners are calculated the same way.
You should get the following speeds for each runner
Tray = 4.167 m/s approximately
Riley = 6.25 m/s
Sara = 5 m/s
Nate = 5 m/s
Only Tray's value is approximate since the decimal number goes on forever. I rounded to three decimal places. The other values are exact.
Once we have these four speed values, we add them up and divide by 4 to find the average speed overall of the group.
(4.167+6.25+5+5)/4 = 5.10425
The average speed of the team is roughly 5.10 m/s
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Extra info (optional section)
To convert from m/s to mph, you will multiply by roughly 2.237
For example, 5 m/s turns into 5*2.237 = 11.185 mph, which is approximate.
Step-by-step explanation:
