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A 150kg roller coaster car rolls frictionlessly down a 30m tall hill. If the car was initially at rest, how fast will it be moving when it reaches the bottom of the hill? 22.0 m/s O 23.1 m/s O 24.2 m/s O 25.3 m/s If the roller coaster car in the previous problem lost 10,000 J of energy to friction as it went down the hill, what would its speed at the bottom of the hill have been? O 21.3 m/s 18.1 m/s O 25.7 m/s O 27.4 m/s

A 150kg roller coaster car rolls frictionlessly down a 30m tall hill. If the car was initially at rest, how fast will it be moving when it reaches the bottom of the hill? 22.0 m/s O 23.1 m/s O 24.2 m/s O 25.3 m/s If the roller coaster car in the previous problem lost 10,000 J of energy to friction as it went down the hill, what would its speed at the bottom of the hill have been? O 21.3 m/s 18.1 m/s O 25.7 m/s O 27.4 m/s

Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter6: Energy Of A System
Section: Chapter Questions
Problem 18P: A small particle of mass m is pulled to the top of a friction less half-cylinder (of radius R) by a...
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I provided the data from  question 1. Only solve number 2 please

A 150kg roller coaster car rolls frictionlessly down a 30m tall hill. If the car was initially at rest, how fast will it be moving when it reaches the bottom of the hill? 22.0 m/s O 23.1 m/s O 24.2 m/s 25.3 m/s If the roller coaster car in the previous problem lost 10,000 J of energy to friction as it went down the hill, what would its speed at the bottom of the hill have been? O 21.3 m/s O 18.1 m/s O 25.7 m/s O 27.4 m/s
Transcribed Image Text:A 150kg roller coaster car rolls frictionlessly down a 30m tall hill. If the car was initially at rest, how fast will it be moving when it reaches the bottom of the hill? 22.0 m/s O 23.1 m/s O 24.2 m/s 25.3 m/s If the roller coaster car in the previous problem lost 10,000 J of energy to friction as it went down the hill, what would its speed at the bottom of the hill have been? O 21.3 m/s O 18.1 m/s O 25.7 m/s O 27.4 m/s
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