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A horizontal board of negligible thickness and area 1. 0 m2 hangs from a spring scale that reads 70 n when a 4. 0 m/s wind moves above the board. The air below the board is stationary. When the wind stops,
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A horizontal board of negligible thickness and area 1. 0 m2 hangs from a spring scale that reads 70 n when a 4. 0 m/s wind moves above the board. The air below the board is stationary. When the wind stops, the scale reads answer n. The density of air is 1. 25 kg/m3 and treat the air as an ideal fluid.

User Nurul Huda
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25 votes
25 votes

Answer:

A horizontal board of negligible thickness and area 2.0 m2 hangs from a spring scale that reads 80 N when a 4.0 m/s wind moves beneath the board

Step-by-step explanation:

User Minimalpop
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