Conceptual Question on Rotational Mechanics

[master_333]

Homework Statement

Rods of negligible mass connect discrete masses as shown in the diagram below. For each system, the masses rotate about the midpoint of each connecting rod. Furthermore the systems appear to rotate in unison as time progresses. Do the systems have the same velocity?

Homework Equations

The Attempt at a Solution

I think the answer is yes because the the question says that the systems appear to rotate in unison.

Could someone please tell me if I am correct?

 

[Doc Al]

Rods of negligible mass connect discrete masses as shown in the diagram below.

You forgot the diagram.

 

[master_333]

You don't need the diagram. You can do it using the question. The diagram are just two rods with masses attached to them. I'm asking if moving in unison means moving with the same velocity.

 

[Doc Al]

Furthermore the systems appear to rotate in unison as time progresses.

Sounds like the rotational velocity is the same.

Do the systems have the same velocity?

Velocity of what? The masses? The center of mass? (See above.)

 

[master_333]

Thank you, that was very helpful.