Velocity

Velocity is how fast something is moving in a specific ________

Identify the following two descriptions below as speed or velocity

1. 20 meters/second 
2. 20 meters/second northeast

The defining equation for velocity is

1. v = d / t
2. v = d * t
3. v = t / d
4. v = (t * d)²

A quantity that has direction as well as magnitude (size) is called

Why quantities in velocity equation are in bold face although it is defined same way as speed equation

v = d / t

Symbol d in velocity equation

is called object's displacement and defined as the _______-line distance from object's starting position to its final position, including the direction from start to finish

v = d / t

Mark the vector quantities

v = d / t

v is (1) __________

d is (2) __________

t is (3) ___________

All quantities that are not vector are called _______

Identify each of the following quantities as vectors or scalar

1. velocity
2. speed
3. time
4. displacement

Is acceleration a vector or a scalar?

Jogger Example

Suppose a jogger leaves her house and jogs north 300 meters to the streetlamp on the corner.  She turns west, jogs another 300 meters, and gets the oak tree 2 minutes after leaving home

1. Which of the three distances given in the figure is the displacement d?
2. What is the jogger's average velocity?
3. What is the total distance (not displacement) travelled?
4. What is the average speed (not velocity) during the 2 minutes?