The weight of a pilot when diving down in a jet plane with an acceleration of 9.8m/s2 will become
Correct answer: D. Zero
- A. Double
- B. Half
- C. Negative
- D. Zero
Explanation
Weight of pilot = Original Weight + Apparent Weight = mg+(-ma) a= 9.8ms-2 So weight of pilot = 0
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About Weightlessness and Artificial Gravity
Weightlessness means the apparent weight or supporting force on an object is zero, as in free fall or an orbiting spacecraft, not that gravity has disappeared. Artificial gravity is produced by centripetal acceleration, usually through rotation. Questions compare gravitational force, normal reaction, orbital motion and the sensation of weight.
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