# Homework Help: Conceptual Question on Rotational Mechanics

1. Mar 7, 2016

### master_333

1. The problem statement, all variables and given/known data
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?

2. Relevant equations

3. 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?

2. Mar 7, 2016

### Staff: Mentor

You forgot the diagram.

3. Mar 7, 2016

### 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.

4. Mar 7, 2016

### Staff: Mentor

Sounds like the rotational velocity is the same.

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

5. Mar 7, 2016

### master_333

Thank you, that was very helpful.