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BlueSkyy
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HELP - Energy of a rolling sphere (no radius??)
A solid sphere of mass 0.602 kg rolls without slipping along a horizontal surface with a translational speed of 5.18 m/s. It comes to an incline that makes an angle of 34degrees with the horizontal surface. Neglecting energy losses due to friction,
(a) what is the total energy of the rolling sphere?
(b) to what vertical height above the horizontal surface does the sphere rise on the incline?
KE = 1/2 m (v^2) + 1/2 I (w^2) where I = 2/5 m (r^2)
PE = mgh
I'm not given a radius so I can't use the KE equation...where do I go from here?
Once I have a radius it will be much easier to solve the problem...
Homework Statement
A solid sphere of mass 0.602 kg rolls without slipping along a horizontal surface with a translational speed of 5.18 m/s. It comes to an incline that makes an angle of 34degrees with the horizontal surface. Neglecting energy losses due to friction,
(a) what is the total energy of the rolling sphere?
(b) to what vertical height above the horizontal surface does the sphere rise on the incline?
Homework Equations
KE = 1/2 m (v^2) + 1/2 I (w^2) where I = 2/5 m (r^2)
PE = mgh
The Attempt at a Solution
I'm not given a radius so I can't use the KE equation...where do I go from here?
Once I have a radius it will be much easier to solve the problem...