Answered: ng at a constant 10.1 m/s when a 45 N…

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

a mass of 8 kg is traveling at a constant 10.1 m/s when a 45 N force starts to act in the opposite direction stopping the object after it has traveled. How much work was done by the force in stopping the object?

Expert Solution

Step 1

We know that the mass m = 8 kg traveling with the constant velocity of v = 10.1 m/s, and a force of F = 45 N is applied to stop the motion in the opposite direction of the motion.

We know that newton second law

$F = ma$ -------------- eq1

a is the acceleration

We also know that the third equation of motion is given as

$v^{2} = u^{2} + 2 as$ -------------- eq2

where v is the final velocity

u is the initial velocity and a is the acceleration

s is the distance travel

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