The 190-kg crate rests on the ground for which the coefficients of static and kinetic friction are u, = 0.5 and lk = 0.4, respectively. The winch delivers a horizontal towing force T to its cable at A which varies as shown in the graph. Originally the tension in the cable is zero. (Figure 1) Part A Determine the speed of the crate when t = 4 s. Hint: First determine the force needed to begin moving the crate. Express your answer to three significant figures and include the appropriate units. HA v = Value Units Submit Request Answer Provide Feedback Figure < 1 of 1 > T (N) 800 T= 400 /2 t (s) 4 АТ

The 190-kg crate rests on the ground for which the coefficients of static and kinetic friction are u, = 0.5 and lk = 0.4, respectively. The winch delivers a horizontal towing force T to its cable at A which varies as shown in the graph. Originally the tension in the cable is zero. (Figure 1) Part A Determine the speed of the crate when t = 4 s. Hint: First determine the force needed to begin moving the crate. Express your answer to three significant figures and include the appropriate units. HA v = Value Units Submit Request Answer Provide Feedback Figure < 1 of 1 > T (N) 800 T= 400 /2 t (s) 4 АТ

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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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

The 190-kg crate rests on the ground for which the coefficients of
static and kinetic friction are u, = 0.5 and lk = 0.4, respectively. The
winch delivers a horizontal towing force T to its cable at A which
varies as shown in the graph. Originally the tension in the cable is
zero. (Figure 1)
Part A
Determine the speed of the crate when t = 4 s. Hint: First determine the force needed to begin moving the crate.
Express your answer to three significant figures and include the appropriate units.
HA
v =
Value
Units
Submit
Request Answer
Provide Feedback
Figure
< 1 of 1 >
T (N)
800
T= 400 /2
t (s)
4
АТ

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