Answer questions #20-22 based upon the roller coaster system in the diagram below. Assumethere is no friction:AmEBDmhAhEChp# 20. If hA = 80.0 m, and the mass of the cart m = 100.0 kg, what is the total mechanical energyof the system at any point?a.1225 Jb.46,000 Jc. 78,400 Jd. 240,000 J# 21. What is the magnitude of the velocity the cart could reach at point G if there is no friction?a. 10.0 m/sb. 22.4 m/sc. 39.6 m/sd. 56.0 m/s# 22. How much work was done by the chain lifting the roller coaster up to the top of the lift?a. 1225 Jb. 46,000 Jc. 78,400 Jd. 240,000 J100 mEL

Answered: Image /qna-images/answer/e28a519f-7805-4468-9bbb-0a2f91dbc5d2.jpg

A m chain 100 m E hA hE G m # 20. If hA= 80.0 m, and the mass of the cart m= 100.0 kg, what is the total mechanical energy of the system at any point? 1225 J a. b. 46,000 J c. 78,400 J d. 240,000 J # 21. What is the magnitude of the velocity the cart could reach at point G if there is no friction? a. 10.0 m/s b. 22.4 m/s c. 39.6 m/s d. 56.0 m/s # 22. How much work was done by the chain lifting the roller coaster up to the top of the lift? a. 1225 J b. 46,000 J c. 78,400 J d. 240,000 J B C DET24 m hD F

A m chain 100 m E hA hE G m # 20. If hA= 80.0 m, and the mass of the cart m= 100.0 kg, what is the total mechanical energy of the system at any point? 1225 J a. b. 46,000 J c. 78,400 J d. 240,000 J # 21. What is the magnitude of the velocity the cart could reach at point G if there is no friction? a. 10.0 m/s b. 22.4 m/s c. 39.6 m/s d. 56.0 m/s # 22. How much work was done by the chain lifting the roller coaster up to the top of the lift? a. 1225 J b. 46,000 J c. 78,400 J d. 240,000 J B C DET24 m hD F

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter3: Energy And Conservation Laws

Section: Chapter Questions

Problem 39P: . In the annual Empire State Building race, contestants run up 1,575 steps to a height of 1,050 ft....

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