Problem No. 1A 14.0-kg Box is lowered vertically by a 16 mm diameter cable in which there is 163 N of tension at a given instant.What is the acceleration of the Box? Is it up or down? Problem No. 2A kid pulls herself upward using the bucket-pulley apparatus as shown below. How much effort must she pulldownward to raise herself gradually at constant rate? (b) if she increases this force by 15%, what will her accelerationbe? The mass of the person plus the bucket is 72 kg.

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A 14.0-kg Box is lowered vertically by a 16 mm diameter cable in which there is 163 N of tension at a given instant. What is the acceleration of the Box? Is it up or down?

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

Problem No. 1
A 14.0-kg Box is lowered vertically by a 16 mm diameter cable in which there is 163 N of tension at a given instant.
What is the acceleration of the Box? Is it up or down?

Problem No. 2
A kid pulls herself upward using the bucket-pulley apparatus as shown below. How much effort must she pull
downward to raise herself gradually at constant rate? (b) if she increases this force by 15%, what will her acceleration
be? The mass of the person plus the bucket is 72 kg.

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