Question

YS-1401-9OL-Spring2019 Unit 1: Week 1-4 (Jan.14-Feb. 8) Week 3: Chapter 2 (continued) Week 3: Content Folder Week 3: Content Folder Powerp Chapter 2-Discussion 1. A toy rocket is launched vertically upward from the ground. If its initial speed is 8.93 m/s, with what speed will it strike the ground? Read the above discussion questions. Click on the link above titled "Chapter 2 Discussion" to start this weeks discussion. You will need to create your own discussion thread by clicking on the "Create Thread", plus reply to two different classmates' threads. You will not be able to view your classmates responses until you post your response. vi- 8.93m/s

Answer 1

using conservation of energy for a certain height

kinetic energy During projected upward =kinetic energy at downfall

0.5 m u^2 = 0.5 m v^2

v = u = 8.93 m/s

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