A large shipping crate is at rest on the horizontal floor of a warehouse. The coefficient of static friction between the crate and the floor is μs = 0.500; the coefficient of kinetic friction is μk = 0.300. Assume that the estimation of the weight of the heaviest crate you could start sliding by pushing on it horizontally is about 100 lb. a) Based on this estimate, what is the magnitude of the maximum force you can apply? b) If you continue to push on the crate with constants force equal to the force calculated in part a) use the impulse-momentum theorem to calculate how long you must push on the crate to give it a speed of 8.0 m/s. Don't forget to take into account the kinetic friction force.

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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.