I Y cobra.parkland.edu C Course Hero MAT-200-Exam-2 - MAT-200-051W_2022SP PHY121_ICPS - PHY-121-401H_2022SP ICPS PHY121-SP2022 Name: 15) A 152. kg log (Izz = 1/2 m R2) with a 0.247 m radius is initially at rest when it starts to roll down a hill. If the hill is 45.7 m higher at the top than at the bottom, then what is: A) the log's total kinetic energy at the top of the hill? [J] a) +2.73x104 c) +6.81x104 b) -2.73x104 d) -6.81x104 e) None/Zero B) the total non-conservative work done on the log once it a) +6.81x104 +1.70x105 reaches the bottom of the hill? [J] b) -6.81x104 d) -1.70x105 e) None/Zero C) the log's total kinetic energy at the bottom of the hill? [J] a) +6.81x104 c) +1.70x105 b) -6.81x104 d) -1.70x105 e) None/Zero D) the log's linear speed at the bottom of the hill? [m/s] a) +9.76 C) +24.4 b) -9.76 d) -24.4 e) None/Zero E) the log's angular speed at the bottom of the hill? [rad/s] a) +99.0 c) +248 b) -99.0 d) -248. e) None/Zero : Reflect in ePortfolio Download Print Open with docReader A Alternative formats > Activity Details You have viewed this topic Last Visited Mar 28, 2022 11:58 AM