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Archive for the ‘Uncategorized’ Category

NEWTON’S LAWS

When a body is at rest or moving in a straight line or rotating about an axis, the body obeys certain laws of motion. These laws are called Newton’s laws of motion. There are three laws of motion. These laws for linear motions and angular motions are

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EQUATIONS OF MOTIONS ALONG A CIRCULAR PATH

Consider a body, which is moving along a circular path. Let ω0 = Final angular velocity of the body in radians per second ω = Final angular velocity in radians per second t = Time in second during which angular velocity changes from ω0 to ω Θ = Angular

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PRINCIPAL AXES

The principal axes are the axes about which the product of inertia is zero. The product of inertia (Ixy) of plane area A with respect to x and y axes is given by equation (4.17), as The above result shows that by rotating the axes through 900,

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Introduction

Surfaces are a two-dimensional whereas the solids are three dimensional bodies. For two –dimensional bodies, are to be determined but for three dimensional bodies volume is to be determined. This chapter deals with determination of area of two-dimensional bodies and volume of three dimensional bodies. Also the

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WEDGE FRICTION

3.8 WEDGE FRICTION A wedge is a piece of metal or wood which is usually of a triangular or trapezoidal in cross-section. It is used for either lifting loads through small vertical distances or used for slight adjustments in the position of a body i.e., for tightening

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