Rolling Physics help needed!

Question

anonymous · Answer

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anonymous · Answer

hmmm.. i thought you could just use newton's second law to the centre of mass?? isnt that what we call as the extended version of newton's second law?

anonymous · Answer

ohh.. there is friction too .. so all we gotta do is

F - f = Macm  [ F = applied force , f = friction, M = mass, acm = acceleration of cm]
now all we need to do is calculate the friction!

anonymous · Answer

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anonymous · Answer

friction can be calculated using the Rotational motion concept!

$$\tau .cm = I.cm \alpha = fR$$
can you proceed from here to calculate f and then apply it?

vincent-lyon.fr · Answer

All you need is Mashy's rotational equation plus N's second law :

F - f = Ma

If rooling happens without slipping, then a and $\alpha$ are related by :

a = R $\alpha$