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Under the action of constant force, a 2kg block moves such that its position x as a function of time is given by X=t^3/3 ,where x in meters and t in sec , the workdone by force in first 2 seconds isA 26.6 jB 3.3 jC 16 jD 32 jSolution) v=dx/dt=t^2,a=dv/dt=2t,f(t)=ma(t),w=∫f(t)*v(t) dt (from x=0 to x=2 sec)
Derive the shape functions N1...N10 for a 10 node triangular element in terms of area coordinates L 1 , L 2 , L 3 . Nodes are equally spaced on the edges and node 10 is at the cen
Two Possible Materials for Casing Two possible materials for the casing would be a. Polypropylene or b. An aluminium 1/3 per cent silicon-casting alloy (LM6). Conclu
POWER SOURCES FOR ARC WELDING Electric arc welding processes constitute a majority of all the welding processes. Most of the weldable materials can be joined by arc welding. D
Calculate the angular deflection (in degrees) produced in a solid circular shaft of diameter 12.5mm and length 0.5 m when the shear stress is 25MPa and the shear modulus 70GPa. Wha
Determine the maximum value of the coefficient of friction: A force of 200 N inclined at 60 o to the horizontal is applied to the block A weighing 400 N. find out whether blo
Calculate plastic zone: Calculate plastic zone ahead of crack in above problem if σY = 250 MPa. Solution From Eq. Here KI is taken as KI max since the plastic
The Mechanical Engineer/Specialist shall prepare Material Requisitions for all required mechanical material and equipment. The format for all requisitions shall be in accordance w
Q. How can you implement chemically coated sand? Chemically coated sand : Clean silica grains are sometimes coated with a non thermosetting hydrocarbon resin, which acts as a
Example of change of enthalpy: Q 0.5kg/s of a fluid flows in steady state process. The properties of fluid at the entrance are measured as p 1 = 1.4bar, density = 2.5k
Discover the angle of twist - uniformly varying shaft: A uniformly varying shaft of length 2 m is subjected to a torque of 2 kN-m. The diameter at the ends shall be 60 mm and
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