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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)
Space mass and weight: The geometric region occupied by bodies called as space. When body changes its position w. r.t. the other bodies, then body is known to be in motion.
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
Determine the process of modelling The process of modelling is much easier, if mathematical description of an object, or at least of part of an object may be applied. In the fi
Concep t of Temperature: The temperature is thermal state of body which describes the degree of hotness or coldness of body. If the two bodies are brought in contact, heat wi
One of the simplest devices that have both vertical and horizontal motion is a slide or chute. It may be straight or spiral and is static in nature. Gravity is utilized in
Find out extension: Q: A bar having length 25mm has varying cross section. It carries load of 14KN. Find out extension if cross section is given by (6 + x 2 /100) mm 2
Calculate the Actual Machining Time Estimate the actual machining time required for the component of diameter 42 mm and length 120 mm. The available speeds are 70, 110, 176, 2
we can use in proove of energy is a propertyof system we can use (E) instead of (dQ-dW)
Determine weight of body and coefficient of the friction: For ce of 200N is needed just to move a certain body up an inclined plane of angle 15°, the force is parallel to th
200 50
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