A block of stone, with a mass of 6600 kg, is being carried on a light sledge. It is held at rest on a smooth ramp by workers pulling on a rope attached to the block. The ramp makes an angle of 14° with the horizontal, and the rope is parallel to the ramp. Each worker can pull with a force of maximum magnitude 400N. Z Draw a force diagram of the situation described. (4 marks) V Calculate the tension in the rope, giving your answer to two significant figures. Find the minimum number of workers needed to hold the block. State and justify any two, significant, assumptions you have applied to your calculations in parts (b)and (c). (5 marks)

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a block of stone with a mass of 6600 kg is being carried on a light sl

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A block of stone, with a mass of 6600 kg, is being carried on a light sledge. It is held at rest on a smooth ramp by workers pulling on a rope attached to the block. The ramp makes an angle of 14° with the horizontal, and the rope is parallel to the ramp. Each worker can pull with a force of maximum magnitude 400N. Z