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Wind can make it difficult to open an outside door of a building. A 50km/h wind can cause added pressure above atmospheric on a door

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Wind can make it difficult to open an outside door of a building. A 50km/h wind can cause added pressure above atmospheric on a door equal to 250Pa. If height H of the door is 2.10m and the width W is 1.00m, determine (a) the torque required to overcome a steady 50km/h wind and open the door (b) the approximate force to be applied to the door handle

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