7. Halfway through a cross country meet, a runner's speed is 4 m/s. In the last stretch, she increases her speed to 7 m/s. What is her change in speed
Chemistry · Middle School · Tue Nov 03 2020
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Given the statement:
Halfway through a cross country meet, a runner's speed is 4 m/s. In the last stretch, she increases her speed to 7 m/s.
Determine the change in speed.
Formula:
In order to determine the change in speed simply subtract the initial speed to the final speed.
Change in speed = Final speed - Initial speed
Change in speed = 7m/s - 4m/s
Change in speed = 3m/s
Final answer:
Change in speed = 3 m/s