1.  What is velocity?  How does it differ from speed? 

2.  What are the units for momentum?

3. What is the momentum of a 70 kg runner whose velocity is 8 m/s from left to right?

4. Look at this picture:

Glider A is sent down the air track at a velocity of 0.30 m/s from left to right with its bluetac buffer facing the direction of travel.  It strikes Glider B, which is stationary, which has its bluetac buffer facing that of Glider A.  This means that the two stick together.  What is their combined velocity and in which direction?

ANSWERS