Average Velocity = displacement / time
= 50 / 20
= 2.5 m/s
Displacement is the length from Start Point to End Point
Example
John drives from his house to North 3 m then he drives to the East 4 m
You can find displacement by the Pythagorean Theorem.
Displacement = [tex]\sqrt[]{3^{2} +4^{2} }[/tex] = 5 m
Pythagorean Theorem
(From Wikipedia)
...This theorem can be written as an equation relating the lengths of the sides a, b and c, often called the "Pythagorean equation"
[tex]a^{2} +b^{2} = c^{2}[/tex]
where c represents the length of the hypotenuse and a and b the lengths of the triangle's other two sides. The theorem, whose history is the subject of much debate, is named for the ancient Greek thinker Pythagoras.
