Position vs Time Use the graph to determine the velocity between 6 and
12 seconds.
m/s
What was the velocity over the entire trip?
m/s
12
10
ſ
8
Position (m)
2
0
2.
4
6
8
10
12
Time (s)

Which is not true about oxygen-17 and oxygen-18?

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?