Blood flows through a major artery at 1.3 m/s for 0.40 s, then at 0.70 m/s for another 0.40 s through a smaller artery.

Question

Is the average speed of the blood 1.0 m/s, greater than 1.0 m/s, or less than 1.0 m/s ?Verify your answer to Part A by calculating the average speed.

Answer 1

1.3*.4 = .52
.7*.4 = .28
total distance = .8

total time = 1.1

av speed = .8/1.1 = .73 m/s

Answer 2

Less than 1.0 m/s.