An airplane with a total wingspread of 40 ft. is equipped with a tricycle landing gear. The two rear wheels of the landing gear have a 10 ft. tread and are 12 ft. behind the forward wheel. The airplane’s weight of 5700 lb. acts 1 ft. in front of the rear wheels. Determine the downward force applied at one wing tip along a line 2 ft. ahead of the rear wheels that will tilt the airplane when it is standing on the runway. What upward force at the same place on the wing tip will tilt the airplane?

An airplane with a total wingspread of 40 ft. is equipped with a tricycle landing gear. The two rear wheels of the landing gear have a 10 ft. tread and are 12 ft. behind the forward wheel. The airplane’s weight of 5700 lb. acts 1 ft. in front of the rear wheels. Determine the downward force applied at one wing tip along a line 2 ft. ahead of the rear wheels that will tilt the airplane when it is standing on the runway. What upward force at the same place on the wing tip will tilt the airplane?

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