If a bus traveled 20 miles north on a straight path, and then traveled 20 miles back to the starting point, what would the velocity of the bus be?

0 mph

20 mph north

40 mph north

we do not have enough information.

i think its 20 mph north

Explanation:

The correct answer is the option d: We do not have enough information.

Explanation:

Hello!

Let's solve this!

To calculate the speed we need the distance traveled and the time it takes to travel it.

The speed formula is

v = x2-x1 / t2-t1

x2: final position

x1: initial position

t2: final time

t1: initial time

In the case of this problem, we have the distance traveled, but we have no time in any case.

After the analysis, we conclude that the correct answer is the option d: We do not have enough information.

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answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error