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Date Posted: 4/5/2008 8:25:39 PM Status: Live

urgent

Course	Textbook	Chapter	Problem
Algebra Based Physics	College Physics (7th) by Serway, Faughn, Bennett	8	N/A

Question Details:

A 180 N sphere 0.20 m in radius rolls, without slipping 6.0 m down a ramp that is inclined at 37° with the horizontal. What is the angular speed of the sphere at the bottom of the hill if it starts from rest?
rad/s

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Answers:

murty

Oracle

Karma Points: 10,392

Date Posted: 4/5/2008 11:20:59 PM Status: Live

Asker's Rating: Lifesaver

Response:

vertical height h =

mg = 180N

As the sphere rolls down the incline it loses PE and gains KE

conservation of energy gives

this is the kinetic energy of sphere as it comes down the incline

Out of this the rotational kinetic energy is given by

= 1263.8115

bucho's Comment:

thanx

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