The block shown in Figure (m = 1.8 kg) is lying on a flat surface characterized by the friction coefficients provided. A man attempts to push the block with a constant force F = 10 N for 2 s, then F is reduced to 6 N and kept constant. What happens? F m H=0.4 Hk=0.3 O 1. The block moves to the right only for the first 2 seconds. O 2. The block moves to the right without stopping. O 3. The block does not move at all. O 4. The block moves to the right for the first 2 seconds, then stops. O 5. More information needed to analyse the motion.

The block shown in Figure (m = 1.8 kg) is lying on a flat surface characterized by the friction coefficients provided. A man attempts to push the block with a constant force F = 10 N for 2 s, then F is reduced to 6 N and kept constant. What happens? F m H=0.4 Hk=0.3 O 1. The block moves to the right only for the first 2 seconds. O 2. The block moves to the right without stopping. O 3. The block does not move at all. O 4. The block moves to the right for the first 2 seconds, then stops. O 5. More information needed to analyse the motion.

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

The block shown in Figure (m = 1.8 kg) is lying on a flat surface characterized by the friction coefficients provided. A man
attempts to push the block with a constant force F = 10 N for 2 s, then F is reduced to 6 N and kept constant. What
happens?
F
m
H=0.4
Hk=0.3
O 1. The block moves to the right only for the first 2 seconds.
O 2. The block moves to the right without stopping.
O 3. The block does not move at all.
O 4. The block moves to the right for the first 2 seconds, then stops.
O 5. More information needed to analyse the motion.

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