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xOrbitz
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Homework Statement
(i) Suppose there's an object rolling without slipping at any surface.
(ii) Now, let's say a disk is rolling and slipping toward the +x direction
2. The attempt at a solution
(i) If the surface is horizontal then it won't apply any friction force on the object regardless on the surface composition, right? Because if the normal force between the object and the table has the same magnitude, then the existence of a frictional force in the horizontal direction would exert a horizontal acceleration on the object, changing it's velocity and therefore the velocity in the point of contact between the object and the surface wouldn't be equal to zero, is that correct?
(ii) Does it means the friction will be also in the +x direction? If so, then the acceleration exerted by the frictional force would rise the translational speed toward the +x direction making the object slide toward this direction because now we have that vbottom > 0, am I getting it right?
Ps: The index is to make it easier to answer the questions (:
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