HW1: In Figure below , the 1200N block is acted upon by the 600N force and the unknown force P as shown. The normal force of the plane on the block is 1800N, and the coefficient of friction between the plane and the block is 0.2. Determine : 600 N (a) the frictional force. (b) the unknown force P.

HW1: In Figure below , the 1200N block is acted upon by the 600N force and the unknown force P as shown. The normal force of the plane on the block is 1800N, and the coefficient of friction between the plane and the block is 0.2. Determine : 600 N (a) the frictional force. (b) the unknown force P.

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 7.3P: Two identical chairs, each weighing 14 lb, are stacked as shown. The center of gravity of each chair...

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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

HW1: In Figure below , the 1200N block is acted upon
by the 600N force and the unknown force P as shown.
The normal force of the plane on the block is 1800N, and
the coefficient of friction between the plane and the block
is 0.2. Determine :
600 N
(a) the frictional force.
(b) the unknown force P.
HW2: In Figure, block A weighs 500N and block B
weighs 1000N. The coefficient of friction is 0.35 between
B and the plane and 0.20 between A and B.
Determine the minimum horizontal force P which will
cause block A to move to the left.
A
30
B

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