On a calm day (no wind), you can run a 1500-m race at a velocity of 4.0 m/s. If you ran the same race on a day when you had a constant tailwind of 2.0 m/s, the time it would take you to finish would be
A) 750 s.
B) 500. s.
C) 1125 s.
D) 9000 s.
E) 250 s.

Question

Quizplus · Accepted Answer

With a tailwind of 2.0 m/s, your effective velocity becomes 4.0 m/s + 2.0 m/s = 6.0 m/s. To find the time, use the formula time = distance / velocity. Thus, time = 1500 m / 6.0 m/s = 250 s.

On a Calm Day (No Wind), You Can Run a 1500-M