As shown in the figure, a 2.10 kg box is held at rest against a spring with a force constant k = 680 N/m that is compressed a distance d. When the box is released, it slides across a surface that is frictionless, except for a rough patch that has a coefficient of kinetic friction μk = 0.35 and is 6.0 cm in length. (a) Calculate the spring's potential energy in terms of d  d2 (b) Calculate the magnitude of the friction force (in N).  N (c) Calculate the work done by the frictional force (in J). Be sure to include the correct sign in your answer.  J

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 14CQ: If three vectors sum up to zero, si1at geometric condition do they satisfy?
icon
Related questions
icon
Concept explainers
Question
As shown in the figure, a 2.10 kg box is held at rest against a spring with a force constant k = 680 N/m that is compressed a distance d.
When the box is released, it slides across a surface that is frictionless, except for a rough patch that has a coefficient of kinetic friction μk = 0.35 and is 6.0 cm in length.

(a)
Calculate the spring's potential energy in terms of d
 d2
(b)
Calculate the magnitude of the friction force (in N).
 N
(c)
Calculate the work done by the frictional force (in J). Be sure to include the correct sign in your answer.
 J
(d)
The speed of the box is 1.9 m/s after sliding across the rough patch. Calculate the initial compression d (in cm) of the spring.
 cm
Equilibrium
position
rough patch
6.0 cm
Transcribed Image Text:Equilibrium position rough patch 6.0 cm
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Potential energy
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
University Physics Volume 1
University Physics Volume 1
Physics
ISBN:
9781938168277
Author:
William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:
OpenStax - Rice University
Glencoe Physics: Principles and Problems, Student…
Glencoe Physics: Principles and Problems, Student…
Physics
ISBN:
9780078807213
Author:
Paul W. Zitzewitz
Publisher:
Glencoe/McGraw-Hill
College Physics
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College