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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)
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A person climbs up a escalator in 60s . When he stands on it , then he is carried in the moving escalator in 30s . How much time will he take in climbing up in a moving escalator?
a) Describe the role of value engineering in new product design and manufacturing. b) Elaborate the basic concept of Just-in-Time in context of optimization of inventory costs.
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Define the nature of force in a member of truss: How can you define the nature of force in a member of truss? Sol.: We know that whenever force is applied on a cross se
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WEDG E FRICTION: Explain how wedge is used for raising heavy loads. Also give principle of it. Sol.: Principle of wedge: A wedge is small piece of material having two
Q. Automation Material Specifications? Automation Material Specifications include the development and / or review of material specifications, and the review of data sheets, mat
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