Question

Make a graph using the measured quantities with radial distance on the x-axis and tangential velocity on the y-axis.

Radial distance= 1.85, 1.40, 1.00, 0.80, 0.60, 0.40

Tangential velocity= 1.03, 1.36, 1.91, 2.38, 3.18, 4.79

1) using your knowledge of graphs, describe the relationship between radial distance and tangential velocity.

I made a graph and my answer was that both the distance and velocity were increasing but my teacher said that this was wrong. Also what is the constant for this graph? My answer was tangential velocity but I think that was wrong too. I am very confused on this topic!

Answer 1

If one takes the data you have typed above, then as distance decreases, velocity increases, which is most different from what you said to your teacher.

Did you graph it?

From looking at the data, I see as distance is halved (.8 to .4), velocity is doubled. Does your graph show that?

velocity=Constant*1/radius
or veloicty*radius=constant

that is the constant you are supposed to be finding.

Answer 2

In a graph of radius, tangential velocity and angular momentum, what shape would be graph be in using the above figures?