
#1
Dec1410, 12:08 PM

P: 32

Pretend there are two accelerating masses connected to a massless string with a frictionless pulley between them. How can the frictionless pulley (Rotational inertia and radius given) affect acceleration in any sort of way?
Also, why is the net force equal to Acceleration * (Mass of two blocks + I/r^2)? I understand the part with the two blocks, but not with the I/r^2. 



#2
Dec1410, 12:48 PM

Mentor
P: 40,874





#3
Dec1410, 01:26 PM

P: 32





#4
Dec1410, 01:35 PM

Mentor
P: 40,874

Torque Concepts 



#5
Dec1410, 02:07 PM

P: 32

Alright, thanks for the help. I think I understand torque and rotation a little better now.



Register to reply 
Related Discussions  
Solve for torque? Torque = Moment of Inertia * Angular Acceleration?  Introductory Physics Homework  6  
Venn Diagrams Concepts(including advanced concepts)  Set Theory, Logic, Probability, Statistics  7  
Wheel torque > contact patch friction > torque  Classical Physics  1  
Understanding Concepts as opposed to Memorizing concepts.  Academic Guidance  44  
torque concepts  Introductory Physics Homework  1 