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7. A1,200 kg car accelerates from rest to 27 m/s in 6 seconds. How much power does the engine exert on the car during this acceleration? m= 1200kg Vi = Om/s F=(1200YA.5) F= 5,400N F=ma Vf =Vi +(a)X+) 27=0+a(ašec) %3D Vf- 27m/s Pawere FV t=6sec 6a= 27 (5,400X27.0m/s)

7. A1,200 kg car accelerates from rest to 27 m/s in 6 seconds. How much power does the engine exert on the car during this acceleration? m= 1200kg Vi = Om/s F=(1200YA.5) F= 5,400N F=ma Vf =Vi +(a)X+) 27=0+a(ašec) %3D Vf- 27m/s Pawere FV t=6sec 6a= 27 (5,400X27.0m/s)

College Physics
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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7. A1,200 kg car accelerates from rest to 27 m/s in 6 seconds. How much power does the engine exert on the car during this acceleration? m= 1200kg Vi= Om/s F= ma Vf = Vi+(a)(+) 27=0+a(ašec) F= (1200YA.5) F= 5,400N %3D Vf- 27m/s Pawere FN (5,400X27.0m/5) コ15,800W)1935型 t=6sec 4.5 m/s2 8. A 400 hp engine in a 1,600 kg car applies maximum force for 2 seconds to accelerate the car onto the HP interstate. If the car moves at 8 m/s before accelerating, what is its speed after the 2 seconds of acceleration? - 4Cohp engine - loco0 kg Unit 4i_Practice Problems Copyright © 2018 Georgia Public Broadcasting. All rights reserved. Use or distribution by an unintended recipient is prohibited. Power= FV ( force velocit) veleo %3D Examples 1006,0k9 car m=1008.0K9 accelerates O m/s 27,0 m/6
Transcribed Image Text:7. A1,200 kg car accelerates from rest to 27 m/s in 6 seconds. How much power does the engine exert on the car during this acceleration? m= 1200kg Vi= Om/s F= ma Vf = Vi+(a)(+) 27=0+a(ašec) F= (1200YA.5) F= 5,400N %3D Vf- 27m/s Pawere FN (5,400X27.0m/5) コ15,800W)1935型 t=6sec 4.5 m/s2 8. A 400 hp engine in a 1,600 kg car applies maximum force for 2 seconds to accelerate the car onto the HP interstate. If the car moves at 8 m/s before accelerating, what is its speed after the 2 seconds of acceleration? - 4Cohp engine - loco0 kg Unit 4i_Practice Problems Copyright © 2018 Georgia Public Broadcasting. All rights reserved. Use or distribution by an unintended recipient is prohibited. Power= FV ( force velocit) veleo %3D Examples 1006,0k9 car m=1008.0K9 accelerates O m/s 27,0 m/6
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