Question

Rolling Physics help needed!

Answer 1

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?

Answer 2

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!

Answer 3

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?

Answer 4

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 \(\alpha\)