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What is the net force on the car while it's coming to a stop? A car having a mass of 500 kg is initially traveling with a speed of 80 km/HR. It slows down at a constant rate, coming to a stop in a distance of 50 m.



A. -12.4x10^3 N
B. 2.4x10^3 N
C. -2.4x10^3 N
D. None of the above.

This question is part of Chapter Test : Work, Energy and Power
Asked by Kmtrinidad, Last updated: Jan 24, 2020

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2 Answers

L. Hawkes

L. Hawkes, Teacher, Memphis

Answered Oct 04, 2018

The answer to this is C. The formula that you should follow for this is the amount of work that is done on your car is equal to KE. The formula for this is Fnetd. This will then be multiplied by...Read More
 

John Smith

John Smith

Answered Dec 27, 2016

-2.4x10^3 N

The total work done on the car (the work done by the net force) equals the change in KE. total work done on car = Fnetd = Fnet x 50 m total work done on car = change in KE ->...Read More
 

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