$1.42 \times 10^4 \textrm{J}$ Giancoli 6th Edition, Chapter 8, Problem 47(2:29) Chapter 8, Problem 47 is solved. Start My Free Week View sample solution
Comments
I thought that I=2/5mr^2 ?
you have I=1/2mr^2 ?
oh never mind that is for a sphere my bad.