In terms of energy we would define rotational kinetic energy as: Ky = %lw? Pre-Lab: Point P, mass = 0.25kg 5m 1. Answer the following questions about point P. Assume that this incline plane does have friction, the wheel starts at rest, and all of the wheel's mass can be expressed at point P a. How many rotations would the wheel complete once it reaches the bottom of the incline plane if it was rolling without slipping? b. If the wheel took 2.5 rotations to reach the bottom of the slope, was the wheel slipping during this motion? From the previous question, what physical change to the ramp could you make to ensure the wheel does not slip during the motion and why? What would be the rotational and linear kinetic energy of the wheel? 2. Do you think a rotating object would experience the same amount of torque during all motions of the rotation? Explain why you think it does or doesn't. Solid wheel Semi-hollow wheel Hollow wheel m = 5kg m = 5kg m = 5kg 3. 3 possible wheels are shown above. Each wheel has the same mass but different shapes. Make a prediction which wheel would have the greatest linear velocity after 10 seconds of going down an incline plane. Explain your reasoning