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A boy intend to move an mkg crate across the floor by applying a constant force p newton on it.the coeficient of friction between the floor and crate is ü.which of these is the best option for his task?
A rope suspended from a ceiling supports an object of weight W at its opposite end. Another rope tied to the first at the middle is pulled horizontally with a force of 30N.the junction P of the rope is in equilibrum. Calculate the weight W and the tens.