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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)
HOW TO PREPARE A DRAWING IN FIRST ANGLE PROJECTION AND THIRD ANGLE PROJECTION AND WHAT IS THEIR BASIC PRINCIPLE AND WE DO NOT MAKE DRAWING IN 2ND ANGLE PROJECTION AND 4TH ANGLE PRO
optmization
Define Cutting Parameters - Depth of Cut It is the thickness of metal removed by grinding wheel in one traverse stroke (lengthwise) t=depth of cut =D 1 -D 2 / 2
When was PDDI developed The PDDI interface was developed in connection with the ICAM project which was funded by the Air Force in order to improve the manufacturing methods in
Q. What are Preheat and interpass temperature? Preheat and interpass temperatures shall be in accordance with the applicable codes. Materials that require preheat for welding
microscopic and macroscopic view points
Determine resultant of four forces: D etermine resultant of four forces tangent to the circle of radius 3m shown in the figure given below. What will be the location of it
Determine the axial extension along a load: An open coiled helical spring is created having 10 turns of a mean radius of 60 mm. The wire diameter is 10 mm and coils make an an
Forces working on dam: Let a dam retaining water as illustrated in Figure (a). What are the forces working on it? Solution The forces working on dam are as follows:
how should we consider positive or negative when summation of forces
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