to clean the minaret top a ladder was built .if the height of the parent is 6m and the leader needs to be placed at a distance of 8m from the base ,how long should the ladder be ?
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He climbs the ladder 2 steps up in one second and 1 step down in the next second ... The step-ladder shown in figure 6.11 is 8 m long and hinged at C ... A man observes when he has climbed up (1)/(3) of.
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