Unformatted text preview: s translational kinetic energy when it reaches ground level? [Hint: Use the Energy Principle to answer this question to express your answer in terms of M, g, θ, L, and f .] C. (6 points) What is the object’s total kinetic energy (translational plus rotational) when it reaches ground level? D. (6 points) Use your answer to part C to find that the speed of the object 2 gh
when it reaches ground level is V =
. I
(1 +
)
MR 2 E. (6 points) The object’s moment of inertial can be represented as I = b ! M ! R 2 where b is a dimensionless number associated with the objects geometry. For example, b = 1 for a hoop, 2/5 for a sphere, ½ for a disk, etc. Express your answer in part D in terms of this expression for I, thereby showing that the final speed does not depend on either the object’s mass nor its radius....
View
Full
Document
This document was uploaded on 03/26/2014 for the course PHYS 172H at Purdue.
 Spring '12
 NA
 mechanics

Click to edit the document details