u5 year

remember UAM (constant ANGULAR acceleration) to use our new equations


rotation: counter-clockwiseis typically positive direction


torque: stronger at a direct angle





NOTES:




counter-clock is positive (explained)

even if spinning at constant speed, there is radial acceleration (increases with the square of angular velocity)


counter-clock is positive, thumb points toward me, so “out of the screen” - look below


lowkey massive - pivots



EXAMPLES:







Here, we add all the CCW torque and subtract all the CW torque










This equals 8.86

