(a) Figure Q3(a) shows a 220 kg box resting on an inclined surface of 35° from horizontal. The coefficient of static friction between the box and the inclined surface is 0.25. A force P is applied on the box at a direction parallel to horizontal. (i) Draw the free body diagram of the system complete with magnitudes and directions of forces. ( ii ) Write all relevant equations of equilibrium for the systems. ( iii) Calculate the magnitude of horizontal force P that is required to start an upward movement of the box. 220 kg P 35°

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Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.