Multiple Choice
On a calm day with no wind, you can run a 1500-m race at a velocity of 4.0 m/s. If you run the same race on a day when you have a constant headwind that slows your speed by 2.0 m/s,
Much time would it take you to finish the race?
A) 250 s
B) 750 s
C) 9000 s
D) 1125 s
Correct Answer:

Verified
Correct Answer:
Verified
Q69: Enzo throws a rock horizontally with a
Q70: A plane flies directly from city A
Q71: A vector <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB34225555/.jpg" alt="A vector
Q72: An airplane with an airspeed of 140
Q73: A boat, whose speed in still water
Q75: A car travels 20 km west and
Q76: The figure shows three vectors and their
Q77: Two displacement vectors have magnitudes of 5.0
Q78: Two perpendicular vectors, <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB34225555/.jpg" alt="Two perpendicular
Q79: If A - B = 0, then