5. The picture to the left shows a bucket connected to a massless rope, which runs...

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5. The picture to the left shows a bucket connected to a massless rope, which runs over a massless, frictionless pulley. A man standing inside the bucket pulls the rope downwards in order to raise himself upwards. The mass of the man is 80.0 kg and the mass of the bucket is 20.0 kg. (a) How hard must the man pull the rope for him and the bucket to ascend at a constant speed? (b) Calculate the magnitude of the force that is needed for an upward acceleration of 1.2m/s2. (c) Using the man's free-body diagram, find the normal force exerted on the man by the bucket in ports (a) and (b) 5. The picture to the left shows a bucket connected to a massless rope, which runs over a massless, frictionless pulley. A man standing inside the bucket pulls the rope downwards in order to raise himself upwards. The mass of the man is 80.0 kg and the mass of the bucket is 20.0 kg. (a) How hard must the man pull the rope for him and the bucket to ascend at a constant speed? (b) Calculate the magnitude of the force that is needed for an upward acceleration of 1.2m/s2. (c) Using the man's free-body diagram, find the normal force exerted on the man by the bucket in ports (a) and (b)

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a To find out how hard the man must pull the rope for him and the bucket to ascend at a constant spe... View the full answer