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A man weighs `80kg` . He stands on a weighing scale in a lift which is moving upwords with a uniform acceleration of `5m//s^(2)` . What would be the r

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A man weighs `80kg` . He stands on a weighing scale in a lift which is moving upwords with a uniform acceleration of `5m//s^(2)` . What would be the reading on the scale?
A. `400N`
B. `800N`
C. `1200N`
D. Zero
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Correct Answer - C
For acceleration upward motion
`R=m(g+a)=80(10+5)=1200N` .
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