Question

Pablo is running down the street at 10.0 meters per second. He sees a $20 bill on the road ahead of him and

starts sprinting. After 5.0 seconds have passed, Pablo is running at 15.0 meters per second. Assuming he does
not change direction, what was Pablo’s acceleration?

Answer 1

n the present case, the initial velocity of the runner is given as 10 m/s. After 5 s, the runner runs with velocity of 15 m/s. If there is no change in direction, then the acceleration can be found easily as the change in velocity per unit time.

So, ������������=�ℎ������������������=(�������������−���������������)����Acceleration=TimeChangeinvelocity=Time(Finalvelocity−Initialvelocity)

������������=15−105=55=1�/�2Acceleration=515−10=55=1m/s2

Thus, the acceleration will be 1 m/�2s2 .

So the change in velocity will lead to an acceleration of 1 m/�2s2 .