Need help with #2 and #3. Answered of #1: a= 2.1 m/s^2Vf= 2.51 m/s t = 1.2s KE = 0.47J

Spinning Wheel A yo-yo is comprised of three uniform disks glued together. The two outer disks have a diameter of 7.3crn and a mass of 0.15kg. The inner disk has a diameter of 5.40m and a mass of 0.15 kg. The string is wrapped around the center disk. The string is held as the object is released from rest 1.5m above the ground. 1. What would be its linear (translational) kinetic energy just before it hits the ground? 2. How long would it take to hit the ground? (hint: it has constant acceler- ation, but the acceleration is not g) 3. In solving question 2, a lot of people incorrectly assume that the object has a linear acceleration of 9.8m/s2 downward. Explain why the acceleration is not 9