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QUESTION
A smooth board placed at 30 degrees to the horizontal supports a mass of 10 kg which is prevented from slipping by attaching it to a spring lying
A smooth board placed at 30 degrees to the horizontal supports a mass of 10 kg which is prevented from slipping by attaching it to a spring lying along the board and fixed at its upper end.Find the tension in the spring.If spring is removed,what horizontal force would have to be applied to the mass to keep it at rest?
