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  3. Physics
  4. A person is measuring his weight by standing on a weighing machine inside a lift. When the lift is at rest, the machine shows his weight to be 55 kg. In between the floor when the lift is moving up with a constant speed of 10 km/h, he again measures his weight, which is

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Q. A person is measuring his weight by standing on a weighing machine inside a lift. When the lift is at rest, the machine shows his weight to be $55 \,kg$. In between the floor when the lift is moving up with a constant speed of $10\, km/h$, he again measures his weight, which is

Delhi UMET/DPMTDelhi UMET/DPMT 2010

Solution:

When the lift is moving up with a constant speed, there is no change in acceleration and hence, the weight remains same.