Atwood Machine: Forces & Motion True/False Quiz

[huybinhs]

Homework Statement

A frictionless, massless pulley is attached to the ceiling, in a gravity field g = 9.81 m/s2. Mass Mb is greater than mass Ma. The tensions Tx,Ty, Tz, and the constant g are magnitudes. (Select a response for each statement.)

Please look at this pic:
http://i995.photobucket.com/albums/af79/huybinhs/atwoodmachine.png

Choices:
Greater than; Less than; Equal to; True or False.

The center-of-mass of Mb and Ma accelerates.
Ty is ... (Mb)g.
Tz is ... (Ma)g + (Mb)g.
Tx+Ty is ... Tz.
The magnitude of the acceleration of Mb is ... that of Ma.
Tx is ... Ty.

Homework Equations

F = ma

The Attempt at a Solution

1 Incorrect. (Try 1)
True
Less than
Equal to
Equal to
Equal to
Equal to

2 Incorrect. (Try 2)
True
Less than
Greater than
Equal to
Equal to
Equal to

3 Incorrect. (Try 3)
True
Less than
Greater than
Less than
Equal to
Equal to

4 Incorrect. (Try 4)
False
Less than
Greater than
Less than
Equal to
Equal to

5 Incorrect. (Try 5)
False
Less than
Equal to
Equal to
Equal to
Equal to

6 Incorrect. (Try 6)
False
Less than
Equal to
Greater than
Equal to
Equal to

 

[kuruman]

What is your thinking about answering these questions? Why did you give these particular answers to these tries? How do you think the "Relevant Equation" F = ma applies to all this?

 

[mparsons06]

Hey Binh,

Did you figure this one out yet? I have racked my brain and researched, but no luck and I've already used 8 tries...