Question

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

Answer 1

The acceleration is given as:

`a=\frac{v_f-v_0_{}}{t}`

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:

`a=(10-0)/(60)=(10)/(60)=0.167`

Therefore the acceleration is:

`a=0.167\text{ }(m)/(s^2)`