Posted by **IVLIVS** on Friday, April 15, 2011 at 2:26pm.

a DC-10 aircraft is flying at an altitude where the atmospheric pressure is 40% of sea level pressure. if the aircraft interior is maintained at sea level pressure, what is the size and direction of the net force acting on a cabin door that is 1.0 meters wide and 2.0 meters high?

- PHYSICS help please -
**BillyJimBob**, Friday, April 15, 2011 at 8:40pm
Pressure at sea level is 101325 Pascals. One pascal exerts a force of one Newton per square meter.

1. Find 40% of 101325.

2. That number will also equal the force in N on each square meter.

3. Find the area of the door.

4. Multiply the answer of #1 above by the answer of #3.

- PHYSICS help please -
**DMITRIC**, Friday, April 15, 2011 at 10:43pm
THANK YOU VERY MUCH...

- PHYSICS help please -
**Adam**, Wednesday, January 30, 2013 at 6:11pm
40530 = 40% of 101325

This number equals the net force (N per Square meter).

Area of door: Width x Height= 2x40530

= 81060

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