WORK IN PROĞRESS: AMUSEMENT PARK ENERGY Show work on back or on a separate sheet of paper. 150 m 80 m 35 m 1. A 2900 kg roller coaster is has an initial velocity of 0 m/s at point A on this frictionless track. a) What is the coaster's potential energy at point A? b) What is the total energy of the coaster? c) How fast is the car traveling at point C? d) If the roller coaster is traveling at 28 m/s at point B, what is its elevation? e) How fast is the car traveling at point D? f) What is the total energy of the coaster at point E?

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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WORK IN PROGRESS: AMUSEMENT PARK ENERGY
Show work on back or on a separate sheet of paper.
150 m
80m
35 m
1. A 2900 kg roller coaster is has an initial velocity of 0 m/s at point A on this frictionless track
a) What is the coaster's potential energy at point A?
b) What is the total energy of the coaster?
c) How fast is the car traveling at point C?
d) If the roller coaster is traveling at 28 m/s at point B, what is its elevation?
e) How fast is the car traveling at point D?
f) What is the total energy of the coaster at point E?
2. Two people with a combined mass of 172 kg decide to bungee jump from a height of 75 meters. They use a
30 meter bungee cord and drop to a height of 8 meters above the ground.
a) What is their potential energy before they fall?
b) What is the spring constant of the cord?
c) What is their velocity when they are 10 m above the ground?
d) How high are they above the ground when they stop bouncing?
Transcribed Image Text:8:12 1 Search WS AMU... Name: WORK IN PROGRESS: AMUSEMENT PARK ENERGY Show work on back or on a separate sheet of paper. 150 m 80m 35 m 1. A 2900 kg roller coaster is has an initial velocity of 0 m/s at point A on this frictionless track a) What is the coaster's potential energy at point A? b) What is the total energy of the coaster? c) How fast is the car traveling at point C? d) If the roller coaster is traveling at 28 m/s at point B, what is its elevation? e) How fast is the car traveling at point D? f) What is the total energy of the coaster at point E? 2. Two people with a combined mass of 172 kg decide to bungee jump from a height of 75 meters. They use a 30 meter bungee cord and drop to a height of 8 meters above the ground. a) What is their potential energy before they fall? b) What is the spring constant of the cord? c) What is their velocity when they are 10 m above the ground? d) How high are they above the ground when they stop bouncing?
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