21. An automobile with mass 2000 kg is traveling at 20 m/sec. How much heat is developed in the brakes when the car is stopped? v = { (average speed) d = v,t + at? (distance under acceleration)W %3D mg (Weight) а %3Fact(Acceleration) F= Gm,m2(Gravity Law)(Kinetic Energy) PE=mgh (Potential Energy)p = mvW = F ·d (Work Done) Q= mcAT (Heat Energy) Q=mL (Latent Heat Energy)effciency =%3Dwork doneenergy provided

Given, mass of automobile m= 2000kg , speed v = 20m/s

Answered: An automobile with mass 2000 kg is…

An automobile with mass 2000 kg is traveling at 20 m/sec. How much heat is developed in the brakes when the car is stopped?

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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Question

21. An automobile with mass 2000 kg is traveling at 20 m/sec. How much heat is developed in the brakes when the car is stopped?

v = { (average speed) d = v,t + at? (distance under acceleration)
W %3D mg (Weight) а %3
Fact
(Acceleration) F= Gm,m2
(Gravity Law)
(Kinetic Energy) PE=mgh (Potential Energy)
p = mv
W = F ·d (Work Done) Q= mcAT (Heat Energy) Q=mL (Latent Heat Energy)
effciency =
%3D
work done
energy provided

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