AIPMT PRELIMS 2009 Physics Newton's Laws of Motion MCQ Question
The mass of a lift is 2000 kg. When the tension in the supporting cable is 28000 N, then its acceleration is:
4 ms⁻² upwards.
4 ms⁻² downwards.
14 ms⁻² upwards.
30 ms⁻² downwards.
Correct Answer
Detailed Explanation
The net force is 8000 N upwards, giving an acceleration of 4 ms⁻² upwards using F = ma.
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