A W = 58 lb block is pushed with a force that is defined by the equation F = (50+ s²) lb. The coefficient of kinetic friction of the block and surface is μ = 0.2. The spring is initially unstretched/uncompressed. s = 1 ft. F = f(s) k Values for the figure are given in the following table. Note the figure may not be to scale. Variable Value lb ft 01 30 degrees Using equations of motion in rectangular coordinates and principle of work and energy, N (s) = P = 16 Vfinal = The block is initially at rest. At the instant, the block has moved a distance of a. Find an equation for the normal reaction between the block and surface as a function of s, N(s). b. Determine final velocity of the block, Vfinal. c. Determine the power developed by the force at the instant, P, in horsepower. m Round your final answers to 3 significant digits/figures. Round your coefficients in equations to 3 significant digits/figures. lb S hp k ft S

A W = 58 lb block is pushed with a force that is defined by the equation F = (50+ s²) lb. The coefficient of kinetic friction of the block and surface is μ = 0.2. The spring is initially unstretched/uncompressed. s = 1 ft. F = f(s) k Values for the figure are given in the following table. Note the figure may not be to scale. Variable Value lb ft 01 30 degrees Using equations of motion in rectangular coordinates and principle of work and energy, N (s) = P = 16 Vfinal = The block is initially at rest. At the instant, the block has moved a distance of a. Find an equation for the normal reaction between the block and surface as a function of s, N(s). b. Determine final velocity of the block, Vfinal. c. Determine the power developed by the force at the instant, P, in horsepower. m Round your final answers to 3 significant digits/figures. Round your coefficients in equations to 3 significant digits/figures. lb S hp k ft S

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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

A W = 58 lb block is pushed with a force that is defined by the equation F = (50+ s²) lb. The
coefficient of kinetic friction of the block and surface is μ = 0.2. The spring is initially
unstretched/uncompressed.
s = 1 ft.
F = f(s)
k
Values for the figure are given in the following table. Note the figure may not be to scale.
Variable
Value
lb
ft
01
30 degrees
Using equations of motion in rectangular coordinates and principle of work and energy,
N (s) =
P =
16
Vfinal =
The block is initially at rest. At the instant, the block has moved a distance of
a. Find an equation for the normal reaction between the block and surface as a function of s, N(s).
b. Determine final velocity of the block, Vfinal.
c. Determine the power developed by the force at the instant, P, in horsepower.
m
Round your final answers to 3 significant digits/figures. Round your coefficients in equations to 3 significant
digits/figures.
lb
S
hp
k
ft
S

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