|Apr22-04, 04:01 PM||#1|
I don't know how to solve the following problem:
A basketball rolls along the floor with a constant linear speed V. (a) Find the fraction of its total kinetic energy that is in form of rotational kinetic energy about the center of ball.
I think the answer is 2/5. But i don't know how to do it.
physics news on PhysOrg.com
>> Promising doped zirconia
>> New X-ray method shows how frog embryos could help thwart disease
>> Bringing life into focus
|Apr22-04, 07:51 PM||#2|
Blog Entries: 1
The total KE is the sum of the translational and rotational KE (about center of mass).
The translational KE = 1/2 MV2
The rotational KE = 1/2 Iω2, where I is the rotational inertia of a spherical shell about its center (look it up!)
One can assume that it is rolling without slipping, which means that V = ωR.
|Similar Threads for: angular speeds|
|various speeds on a wave||Introductory Physics Homework||4|
|speeds||Introductory Physics Homework||1|
|Relation between Angular speeds/accelerations||Introductory Physics Homework||4|
|Speeds and waves||Special & General Relativity||2|
|different speeds of light||General Physics||5|