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
29 sm
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.