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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)
FRICTION: you have learnt laws of friction and problems involving dry friction. The relative sliding motion of one body on another body is resisted by forces called as frictio
Determine the final temperature in piston – cylinder: One Kg of steam at 1.5MPa and 400ºC in a piston - cylinder device is cooled at constant pressure. Determine the final te
If Motorcycle Starts but Stops Suddenly Causes of Problem Remedy The spark plug gets short-circuited by heating
The two-storey frame shown in Figure Q4 is such that the self-mass may be considered to be located at the beam levels and the beams may be presumed to be rigid. The self-mass (
What is the magnitude of frictional force after perfect rolling begins and why? solution) After pure rolling begins,frictional force is 0. This is because the velocity of he c
What is the aim of PDES The aim of PDES is to provide an interface which permits the exchange of data of the entire product development cycle and production cycle, see also PDE
A 68.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.780 and 0.430, respectively. (a) What horizontal pushing force i
Lean Mixture: It generally ranges from approximately 15 : 1 to 17 : 1. By the use of this fuel, engine runs for higher economy.
Describe the Mechanics of orthogonal cutting. What is chip thickness ratio and formulae for it ? Explain Shear angle relationship based on Merchant's minimum cutting energy prin
Calculate Heat transfer through cylinder wall: Calculate change in entropy and heat transfer through cylinder walls, if 0.4m 3 o f a gas at the pressure of 10bar and 20
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