8 10 pts The 75 kg man who almost fell 75m into the

Last updated: 6/21/2023

8 10 pts The 75 kg man who almost fell 75m into the crocodile pit is still in danger when his friend Justin Thyme shows up to help Thinking quickly Justin ties a 90kg boulder to the other end of the rope and pushes it off the cliff The pulley starts spinning from rest and the hanging person Rick is pulled to safety The disk shaped pulley has a mass of 15 kg and a 0 70m diameter O Using the concepts of energy and or momentum not acceleration a How fast is Rick moving when he reaches the top of the cliff b Write an equation for angular momentum conservation for the pulley