The question are asking for acceleration of the yoyo downwards i used different equations and calculated the total moment of inertia, where i got that
T(torque) = r * Fs(spring force)
T (torque) = I * alpha --> I * alpha = r*Fs ----> alpha = a/r
Ma = Mg - Fs
Fs = [I (total) *(a/r)]/r...
I have a question about the situation in b), wouldn't the string force also provide acceleration? and the acceleration of the yoyo isn't the same as g (9.80) ,some of the energy is transferred to the spinning motion, right?
I also have a question about this problem, if you find an Acceleration i task a), can you use it in the other tasks? I have done that, but not sure if its right, because wouldn't you get a new acceleration out of every corner? . (srry if my question may seem a bit unclear, was hard to explain)
In a), don't you need an angle in your answer because they are asking for a vector? know its relative to the earth, therefore i am not exactly sure if you need an angle in your answer