A 1,500 kg car traveling at 13.4 m/s (30 mph) applies its breaks and comes to rest in 5.5 seconds. If the brake discs begin at room temperature (20.0°C), what is their final temperature after the car comes to a rest? Assume: 1. ALL the work done by friction enters the car's brake discs 2. The work is shared equally between the four discs 3. The discs are made of high -carbon steel (c=0.50 J/g) 4. The four discs have a combined mass of 28 kg Give your answer in °C to three significant figures (one decimal place).
A 1,500 kg car traveling at 13.4 m/s (30 mph) applies its breaks and comes to rest in 5.5 seconds. If the brake discs begin at room temperature (20.0°C), what is their final temperature after the car comes to a rest? Assume: 1. ALL the work done by friction enters the car's brake discs 2. The work is shared equally between the four discs 3. The discs are made of high -carbon steel (c=0.50 J/g) 4. The four discs have a combined mass of 28 kg Give your answer in °C to three significant figures (one decimal place).
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![A 1,500 kg car traveling at 13.4 m/s (30
mph) applies its breaks and comes to rest in
5.5 seconds. If the brake discs begin at room
temperature (20.0°C), what is their final
temperature after the car comes to a rest?
Assume:
1. ALL the work done by friction enters the
car's brake discs
2. The work is shared equally between the
four discs
3. The discs are made of high -carbon steel
(c=0.50 J/g)
4. The four discs have a combined mass of
28 kg
Give your answer in °C to three significant
figures (one decimal place).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4b15fb19-c6f2-4daf-acf8-8fd0d53a26a7%2F7ac25733-e787-44a1-badd-78025da6a3f5%2Fd4ukmjh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A 1,500 kg car traveling at 13.4 m/s (30
mph) applies its breaks and comes to rest in
5.5 seconds. If the brake discs begin at room
temperature (20.0°C), what is their final
temperature after the car comes to a rest?
Assume:
1. ALL the work done by friction enters the
car's brake discs
2. The work is shared equally between the
four discs
3. The discs are made of high -carbon steel
(c=0.50 J/g)
4. The four discs have a combined mass of
28 kg
Give your answer in °C to three significant
figures (one decimal place).
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