Maharashtra BoardEnglish MediumSTD 11 SciencePhysicsGravitation2 Marks
Question
Why does a passenger feel lighter when the lift is about to stop at a higher floor during its upward motion?
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Answer
When the lift is about to stop at a higher floor during its upward motion it has a net downward acceleration.
As the net acceleration is downwards, the downward force must be greater. ∴ F = ma = mg – N ∴ N = mg – ma i.e., N < mg Hence, a passenger feels lighter when the lift is about to stop at a higher floor during its upward motion.
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