Calculate the spring's potential energy in terms of d ____ d2 Calculate the magnitude of the friction force (in N). ______ N Calculate the work done by the frictional force (in J). Be sure to include the correct sign in your answer.
Calculate the spring's potential energy in terms of d ____ d2 Calculate the magnitude of the friction force (in N). ______ N Calculate the work done by the frictional force (in J). Be sure to include the correct sign in your answer.
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 2.13CYU: Check Your Understanding Find the angle between forces F1and F3in Example 2.16.
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Question
As shown in the figure, a 1.50 kg box is held at rest against a spring with a force constant k = 675 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 = 0.41 and is 6.0 cm in length.
Calculate the spring's potential energy in terms of d
____ d2
Calculate the magnitude of the friction force (in N).
______ N
Calculate the work done by the frictional force (in J). Be sure to include the correct sign in your answer.
____
Calculate the work done by the frictional force (in J). Be sure to include the correct sign in your answer.
_____ JThe 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
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