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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)
Refractoriness The capability of a material to withstand the action of heat devoid of appreciable deformation of softening is submitted to as refractoriness. Such property is m
FRICTION WELDING In this, friction is employed to generate heat b/w two sliding or rotating metal surfaces. This process is usually carried out by placing the pieces to be welded
What must be thickness of Wall tank: ASTM 285 C, construction material. 15.75 ft diameter 18.0 ft length Wall length down cone =10.4 ft length top cone = 8.3 ft Operation pressur
Determine the moment of forces: The side of a square ABCD is 1.60 m long .Four forces equal to 6, 5, 4 and 8 N acts respectively along with the line CB, BA, DA, DB. Determine
The spring controlled governor of the Hartung type has two rotating masses each of 2.5kg and the limits of their radius of rotation are 100 mm and 125 mm. The each mass is directl
Find out the centroid of an area of a semicircle: Find out the centroid of an area of a semicircle illustrated in Figure. Solution You shall note that it is not p
Supports for Rigid Bodies (Space Structures): The primary step in solving equilibrium problems is to draw free-body diagram. Isolate the body through its surrounding. Replace
The pressure and temperature of a diesel cycle at the start are 1 bar and 20C respectively and the compression ratio is 14. The pressure at the end of expansions 2.5 bar. Find perc
Compute the force in the rod: A rod ABC rotating at 20 rpm about a vertical axis through A, supports a ball of mass 10 kg at its lower end. It is fixed in position by the rod
Power transmission in vehicle
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