A box of mass 4 kgGiven that the box is moved at a constant speed of 2 ms-1, what is the friction betweenthe box and the rough surface?being pushed horizontally on a rough surface by a 12 N force.A. 4NB. 12 NС. 16 ND. 20 NO AO BD.

Mass of the box = 4 kg Pushing Force on box = 12 N Constant speed of box = 2 m/s

A box of mass 4 kg is being pushed horizontally on a rough surface by a 12 N force. Given that the box is moved at a constant speed of 2 ms 1, what is the friction between the box and the rough surface? A. 4N В. 12 N С. 16 N D. 20 N

A box of mass 4 kg is being pushed horizontally on a rough surface by a 12 N force. Given that the box is moved at a constant speed of 2 ms 1, what is the friction between the box and the rough surface? A. 4N В. 12 N С. 16 N D. 20 N

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Chapter24: Expansion Devices

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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 box of mass 4 kg
Given that the box is moved at a constant speed of 2 ms-1, what is the friction between
the box and the rough surface?
being pushed horizontally on a rough surface by a 12 N force.
A. 4N
B. 12 N
С. 16 N
D. 20 N
O A
O B
D.

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