# An airplane makes a round trip from point a to b in 1.20 hours. the distance from point a to b is 340 km.?

What is the plane's average velocity? the answer is 0m/s. but i dont understand how!!!!

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- Anonymous7 years agoFavorite Answer
The airplane makes a round trip.

This means that it travels 340km forward in 0.6 hours, then travels 340km backward in 0.6 hours.

The velocity of the airplane for the first part is +157.4m/s.

The velocity for the second part is -157.4m/s.

157.4 - 157.4 = 0

The average velocity is therefor 0m/s.

Source(s): Adv. Higher Physics- Login to reply the answers

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