Question

A car traveled 16 km north and then 20 km east. The total time of travel was 0.75 h. Find the average speed and average velocity of the car for this trip.

Answer 1

This one I guess

Answer 2

Yes

Answer 3

I need solution.

Answer 4

Many times speed=velocity. But here I think you need two different things.
For the speed: He traveled 16+20=36km in 0.75h
36/0.75= 48km/h
For the velocity he needs a vector solution.

Answer 5

So he traveled North 16km and east 20km
Draw this and you will see that the actual distance can be found by using the Pythagorean Theorem.
16^2+20^2=d^2 (d is distance)
656=d^2
d=25.61

Average velocity is
25.61/0.75=34.15 km/h

Answer 6

Thanks again Andras