Question

4. If you travel the first half of a trip at 20 mi/h, how fast must you travel the second half of the trip so that your
average speed will be 40 mi/h?

Answer 1

Answer:

60 mi/h

Explanation:

An average is:

$m = \frac{\text{sum of the terms}}{\text{number of terms}}$

And this is the same in physics.

So:

20+60 =80

80/2= 40