As shown in figure below, a 100 lb body moves along the two inclines for which the coefficient of friction is 0.30. If the body starts from rest at A and slides 200 ft down the 30° incline, what will be its velocity when it returns to B? 100 lb 30° 200

As shown in figure below, a 100 lb body moves along the two inclines for which the coefficient of friction is 0.30. If the body starts from rest at A and slides 200 ft down the 30° incline, what will be its velocity when it returns to B? 100 lb 30° 200

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.71P: The 600-lb cable spool is placed on a frictionless spindle that has been driven into the ground. If...

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Concept explainers

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

As shown in figure below, a 100 lb body moves along the two inclines for which the coefficient of friction is
0.30. If the body starts from rest at A and slides 200 ft down the 30° incline, what will be its velocity when
it returns to B?
100 lb
30
200
O55.62 fps
O 68.1 fps
O36.4 fps
O 104.3 fps

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