February 25, 2017

Homework Help: Physics

Posted by Dermot on Saturday, August 7, 2010 at 2:46pm.

A uniform solid sphere of mass 4kg and diameter 20cm initally at rest, begins to roll without slipping under the influece of gravity, down an incline that makes an angle of 15degrees to the horizontal

1 calculate the angular acceleration of the sphere

2 what is the total kinetic energy of the ballafter 3s?

3 how far does it roll?

(assume I=(2/5)Mr^2 for a uniform solid sphere.)

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