Morgan has a mass of 85 kg and is on top of a bed in such a position that she can apply a pressure of 9530 n/m^2 on the mattress. would you calculate that morgan is standing sitting or lying on the bed.

Question

Pierre Lynch

Physics

25 May, 18:01

Morgan has a mass of 85 kg and is on top of a bed in such a position that she can apply a pressure of 9530 n/m^2 on the mattress. would you calculate that morgan is standing sitting or lying on the bed.

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Answers (1)

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Gracelyn Skinner · Answer 1

Morgan has a mass of 85 kg, therefore she has a weight of

(85 kg) * (9.8 m/s²) = 833 N

Because the applied pressure is 9530 N/m², the weight is applied over an area, A, such that

(833 N) / (A m²) = 9530 N/m²

A = 833/9530 = 0.0874 m²

The total surface area of the human body ranges from 1.0 to 2.0 m².

Because the calculated area is very small compared to the surface area of the human body, Morgan is standing on the bed, possibly in high heels.

Answer: Standing on the bed.