Question

SOLVE for average speed: A car travels at 60 meters in 15 seconds and then 20 meters in 5 seconds. What is the car's average speed?

average speed = total distance / total time


a 15 m/s
b 8 m/s
c 4 m/s
d 45 m/s
e 22.5 m/s

Answer 1

C

Step-by-step explanation:

Average speed = total distance / total time

= (60 + 20) / (15 +5) = 80 / 20 = 4 m/s