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A person is running a 10km race. They start at 4m/s and it takes them 41.67 minutes to run the race. What’s their acceleration

Respuesta :

Answer:

[tex]-1.59 \times 10^{-3} m/s^2[/tex] is the acceleration of the person.

Explanation:

Given that,

Initial velocity of the person is 4 m/s

The race is completed in 41.67 minutes = [tex]41.61 \times 60[/tex] = 2500.2 seconds.

The final velocity is 0 m/s as the person completes the race and the speed will be 0 at end of the race.

using the formula,

V = U + at

where,

"V" is "Final velocity"

"U" is "Initial velocity"

"a" is "acceleration"

"t" is "time"

Now, find the "acceleration" by substituting the values in the above formula,

[tex]0=4+a\times 2500.2[/tex]

[tex]\frac{-4}{2500.2}=a[/tex]

[tex]-1.59 \times 10^{-3} m/s^2[/tex] is the "acceleration" of the person.