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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)
Airport Drainage: Rainwater should be quickly taken away from the runway, taxiway and apron areas. For drainage of runway and taxiway, a cross-slope of 1.5 per cent on either
Force - Mechanics: Sometime we push the wall, then there are no changes in position of wall, but no doubt we apply a force, as the applied force is not sufficient to move the
Difference between projectile motion and a rocket motion? Ans) A projectile has no motor or rocket on it, so all of its momentum is given to it as it is opened. An example of a
Q. 11: What is relation between the maximum tensile stress and the maximum compressive stress in any section of beam? Sol.: L et us assume inverted angle section of the beam a
Armature core and armature winding Armature is the rotating part of the machine. It is cylindrical in shape with slots on its outer periphery. It houses the armature conducto
Introduction and conclusion on frames
#queConsider laminar flow in a circular tubewith a fully developed velocity profile.Let the heat be added at a constant rate along the tube from x+ =0 to x+ =0.10 . Thereafter ,
During a test on a Lister engine in a thermal laboratory, following parameters were measured; crank shaft speed=1,750rpm Load on dynamometer=220N Radius of dynamometer=1.5m Fuel co
Compute the coefficient of friction at block: The frame shown in Figure rotates about a vertical axis. The coefficient of friction under block A is 0.4. Compute the coefficien
Fixed type In this set up, the welding head is kept fixed and the movement required during welding is provided through in the jobs to be welded. A typical application of this arr
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