during a race a runner runs at a speed of 6 m/s. 2 seconds later she is running at a speed of 10 m/s. what is runners acceleration? show your work.

acceleration=(vf-vi)/time

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To find the runner's acceleration, we can use the formula for acceleration:

acceleration (a) = (final velocity - initial velocity) / time

Given:
Initial velocity (u) = 6 m/s
Final velocity (v) = 10 m/s
Time (t) = 2 seconds

Substituting the values into the formula for acceleration:

a = (10 m/s - 6 m/s) / 2 seconds

Calculating the numerator:

10 m/s - 6 m/s = 4 m/s

Now, substitute the result back into the formula:

a = 4 m/s / 2 seconds

Dividing the numerator by the denominator:

a = 2 m/s²

Therefore, the runner's acceleration is 2 m/s².