A 25 kg ladder, 4m long, rest on a rough floor and against a vertical wall. The ladder makes an angle of 350 with the horizontal as shown. It starts to slip when a man weighing 75 kg has climbed half way up. If f = 0.2 at the wall, find the coefficient of friction at the floor. Find the value of f in terms of X or H. * 75 kg N1 2 m 0.2 N1 2 m 25 kg 35° fn2 A N2

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Forced undamped vibrations

In mechanical engineering, vibration is expressed as the term that occurs due to an object's backward and forward movement about a point of equilibrium. Generally, there are three types of vibrations which are,