Aryan
Last Activity: 7 Years ago
Torque=fR=2f=40t-10t²=10alpha As, Torque=I.alphaAlpha = 4t-t²Omega = alpha. dt=(4t-t²)dt =2t²-t³/3When it stops rotating Omega = 0So, 2t²-t³/3=0t=6secondsTheta (angular displacement) =omega.dt[2t³/3 - t*4/12] limits from 0 to 6=36No. Of revolutions = 36/2pie