A mass is sliding on a frictionless surface with a speed v. It runs into a linearXspring with a spring constant of k, which compresses from position x, to position xp.X;mm©theexpertta.comPart (a) Write a general expression for the force that the spring exerts on the mass, in term of k and x. Choose the initial position of the front of thespring to be x;=0.= - kx v Correct!FspringPart (b) Select the equation that correctly describes the work done by the spring to stop the mass.W = -w = - kx dx v Correct!Part (c) Evaluate the relationship in part (b) to arrive at an expression for the work done in terms of known variables.W = - ( 1/2 ) k x2|89HOMEd56.ahj123PEND-XfXịVOI BACKSPACECLEARDELI give up!SubmitHintFeedbackHints: 1 for a 0% deduction. Hints remaining: 0Feedback: 0% deduction per feedback.|-What is the integral of x dx?Part (d) Solve for the numerical value of the work done in Joules given that x; = 0, xp= 68 cm, and k = 145 N/m.W = - 33.5W = -33.5/ Correct!

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Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 44PQ: A student working on a school project modeled a trampoline as a spring obeying Hookes law and...

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