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A block of mass M attached to an inexpensible string descends with uniform acceleration a The mass of the string below the point P is M find the tensi
Let's assume that the block is descending downward, and we'll choose the upward direction as positive. The forces acting on the block are the tension force (T) in the string pulling upward and the force due to gravity (mg) pulling downward. The net force on the block is equal to its mass (M)...