Unit 2 Worksheet 1

1.      Consider the position vs. time graph below for cyclists A and B.

a.      Do the cyclists start at the same point?  How do you know?  If not, which is ahead?

b.      At t= 7s,  which cyclist is ahead?  How do you know?

c.      Which cyclist is travelling faster at  3s?  How do you know?

d.      Are their velocities equal at any time?  How do you know?

e.      What is happening at the intersection of lines A and B?

2.      Consider the position vs. time graph below for cyclists A and B.

a.      How does the motion of the cyclist A in this graph compare to that of A in the previous graph on page one?

b.      How does the motion of cyclist B in this graph compare to that of B in the previous graph on page one?

c.      Which cyclist has the greater speed (magnitude of velocity)?  How do you know?

d.      Describe what is happening at the intersection of lines A and B.

e.      Which cyclist has traveled further during the first 5 seconds?  How do you know?