Aeroplane A is flying east at a speed of 600 km/h along the horizontal axis at the instance shown in the figure below. Aeroplane B passes under A, with its nose pointed 45° in the northeast direction. In the meantime, B is moving relatively away from A at an angle of 60° in the direction shown below. 60° y 45° a) Draw the vector diagram denoting the relative motion of the aeroplanees Clearly annotate each vector to represent velocities of A and B, as well as the velocity of B relative to A. Indicate vector directions using arrows. b) Determine the velocity of B, and the velocity of B relative to A. c) As time progresses from this initial instance, the velocity of aeroplane A increases and is defined by v(t) = 4P + 2t + 600 km/h. Determine the displacement, velocity and acceleration of aeroplane A after 12 seconds. d) Determine the acceleration of B, and the acceleration of B relative to A, at this new time instance (t = 12 seconds) as defined in part (c).

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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.