i solved it myself but i will leave it here for other people if they need help. ignoring all my work above, it is best to use equation . Then you use the appropriate inertia equation, which in this problem you'll use I = .5*m*r^2. And then for T, use T = 1/f. Plug those equations into the...
Homework Statement
A torsional pendulum consists of a disk of mass 450 g and radius 3.5 cm, hanging from a wire. If the disk is rotated through an angle of 45o and released from rest and oscillates with a frequency of 2.5 Hz, what is the torsion constant of the wire?
A :
1.7 x 10-3...