Problem 4P

The blades in a blender rotate at a rate of 6500 rpm. When the motor is turned off during operation, the blades slow to rest in 3.0 s. What is the angular acceleration as the blades slow down?

Physics 211, Week 10 Notes PSU: Fall term Chapter 11: Rolling Bodies: For a wheel of radius R rolling smoothly Vcom = wR Where Vcom is the linear speed of the wheel’s center of mass and w is the angular speed of the wheel about its center. The wheel may also be viewed as rotating instantaneously about the point P of the “road” that is in contact with the wheel. The angular speed of the wheel about this point is the same as the angular speed of the wheel about its center. The rolling wheel has kinetic energy If the wheel is being accelerated but is still rolling smoothly, the acceleration of the center of mass is related to the angular acceleration about the center with-> If the wheel rolls smoothly down