HEP A runner has a speed of 25 m/s. They see the finish line and speed up to 30 m/s. This happens in 5 seconds. IF the runner has a mass of 75 kg, with what force did the runner cross the finish line?
-Explanation needed

75 N

Explanation:

F= ?

V1 =25 m/s

V2= 30 m/s 5s

M= 75 kg

A= v2-v1/t

A= 30-25/5

A= 1 m/s

F= 75 kg

M= 75 kg

A= 1 m/s

F= ma

F= 75(1)

F=75 N

I hope this helps, I’m only in the 8th grade and this is what my teacher taught us how to do it <33

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