Extracted text: 4. A spiral staircase in a building is in the shape of a helix of radius 5 meters....

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Extracted text: 4. A spiral staircase in a building is in the shape of a helix of radius 5 meters. Between
two floors of the building, the stairs make one full revolution and climb by 4 meters.
A person carries a bag of groceries up two floors. The combined mass of the person
and groceries is 70 kg and the gravitational force is 70g downward, where g is the
acceleration due to gravity. Calculate the work done by the person against gravity.

Nitika · Accepted Answer

Microsoft Word - Document1
Question: A spiral staircase in a building is in the shape of a helix of radius 5 meters. Between 
two floors of the building, the stairs make one full revolution and climb by 4 meters. A person 
carries a bag of groceries up two floors.

4. A spiral staircase in a building is in the shape of a helix of radius 5 meters. Between two floors of the building, the stairs make one full revolution and climb by 4 meters. A person carries a bag...

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