AIPMT PRELIMS 2003 Physics Forces MCQ Question
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/s²)
Zero
400 N
800 N
1200 N
Correct Answer
Detailed Explanation
The apparent weight is given by W = m(g + a). Substituting the values gives the reading on the scale.
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