
#1
Nov2209, 09:47 PM

P: 10

A uniform sphericall shell of mass=4.5kg and radius= 8ck can rotate about a vertical axis on frictionless bearings. A massless cord passes around the equator of the shell, over a pulley of rotational inertia, I = 3.0 * 10^2 and radius = 5.0cm and is attached to a small object of mass = 0.60kg.
Using Newtonian dynamics and rotational motion: (a) Find the acceleration of the block (b) the angular acceleration of the shell and pulley (c) the tensions in the cord. (d) Let the small object start from rest at t=0. Use energy considerations to find the speed of the object when it has fallen 82cm. Formulas I calculated ma= mgT alpha= acceleration/radius torque= I0*alpha torque= Isp * alphasp alphasp=acceleration/radius torque/radius= Tension  Tension^1 Tension^1= tension^1/r 


Register to reply 
Related Discussions  
Inertia due to acceleration  Classical Physics  1  
pulley moment of inertia acceleration  Introductory Physics Homework  3  
moment of inertia, tension, acceleration  Introductory Physics Homework  16  
Moment of Inertia/Acceleration of a Swinging Rod  Introductory Physics Homework  1  
Pulley, Moment of inertia, and acceleration  Introductory Physics Homework  1 