A man weighs 80 kg. He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of 5m/s2 What would be the reading on the scale (g 10 m/s?
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1200N
moving up:
F=m(g+a)
80(15)=F
F=1200N
moving up:
F=m(g+a)
80(15)=F
F=1200N
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