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4. After traveling for 60 seconds, a runner reaches a speed of 10 m/s. What is the runner's acceleration?

Sagot :

The acceleration is given as:

[tex]a=\frac{v_f-v_0_{}}{t}[/tex]

where vf is the final velocity, v0 is the initial velocity and t is the time. In this case we have that the final velocity is 10 m/s, the initial one is zero m/s and the time it takes is 60 seconds, plugging this values we have:

[tex]a=\frac{10-0}{60}=\frac{10}{60}=0.167[/tex]

Therefore the acceleration is:

[tex]a=0.167\text{ }\frac{m}{s^2}[/tex]

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