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Q. Explain the terms centre of gravity and centroid.
Sol.: A point can be found out in a body through which resultant of all such parallel forces acts. This point through which whole weight of body acts irrespective of position of body is called as centre of gravity. Everybody has one centre of gravity.
The plane figures like rectangle, circle, triangle etc., have only areas, but do not have mass. The centre of area of such figure is called as centroid.
The method of finding centroid of a figure is same as that of finding out C.G. of body.
X = Ai . xi/A
Y = Ai . yi/A
C.G. = (X,Y)
The stepped bar in Fig Q6 is stretched along the vertical axis and the maximum upward displacement is found to be 0.008 m. The bar has cross-sectional areas of A 1 and A 2 ov
Describe productivity. How do we calculate the productivity? Enumerate various factors effecting the productivity. Define various ways for the improvement of productivity.
Branches of mechanics: Mechanics is basically divided in to two parts Static's and Dynamics, Dynamics is further divided in kinematics and kinetics Statics: It deals with
Find length of belt: Find length of belt which is required to drive a pulley of 500mm diameter running parallel at the distance of 12m from driving pulley of diameter 1600m.
Engine Lubrication System: This system facilitates the lubrication of all the engine components, gears and other associated parts.
classification of polymers
Q. The area of the hysteresis loop of a given magnetic material is 50cm 2 with the two axes scaled as 1cm = 20AT and 1cm = 50mWb, for 50Hz frequency find the total hysteresis
Find out the centroid of the shaded : Find out the centroid of the shaded area shown in Figure Solution Net area of shaded portion of Figure = The area of full
write an algorithm to calculate simple intrest
temparature stresses in composite bars
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