The pressure inside a commercial airliner is maintained at 1 ATM (1.01 *10⁵ N/m²).What is the outward force exerted on a 1.0 m * 2.0 m cabin door if the outside pressure (at 10 km height)is 0.3 ATM? A)1.4 *10² N B)1.4 *10³ N C)1.4 *10⁴ N D)1.4 *10⁵ N E)7.0 * 10³ N

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Quizplus · Accepted Answer

The force is calculated using the pressure difference and the area of the door: F = (P_inside - P_outside) * Area. The pressure difference is (1 - 0.3) ATM = 0.7 ATM = 0.7 * 1.01 * 10^5 N/m^2. The area is 1.0 m * 2.0 m = 2.0 m^2. Thus, F = 0.7 * 1.01 * 10^5 * 2.0 = 1.414 * 10^5 N.

The Pressure Inside a Commercial Airliner Is Maintained at 1