Question

You have already traveled 30 miles east and then 30 miles north. To get back to the start, you travel 30 miles west in 1 hour and then 30 miles south in a half hour. What are your average speed and average velocity for the whole rally?

Answer 1

Answer:

The average speed for the whole rally is 45 miles per hour.

Step-by-step explanation:

Given:

You have traveled 30 miles east and then 30 miles north. To get back to the start, I travel 30 miles west in 1 hour and then 30 miles south in a half hour.

Now, to find the average speed for the whole rally.

So, for getting the speed of 30 miles west in 1 hour.

By putting formula:

$Speed = \frac{distance}{time}$

$Speed = \frac{30}{1}$

$Speed = 30\ miles\ per\ hour$

Now, to get the speed of 30 miles south in half hour same way as above:

$Speed=\frac{30}{0.5}$

$Speed = 60\ miles\ per\ hour$

Then, to get the average speed.

We calculate the average of both the speed:

$Average=\frac{30+60}{2}$

$Average=\frac{90}{2}$

$Average=45 miles\ per\ hour.$

Therefore, the average speed for the whole rally is 45 miles per hour.