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NEET 2009 (AIPMT) · Apparent Weight & Lift

Apparent Weight & Lift question from NEET 2009 (AIPMT)

Q18NEET 2009 · AIPMTEasy

Apparent Weight & Lift

The mass of a lift is 2000 kg. When the tension in the supporting cable is 28000 N, then its acceleration is:

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Answer: (a)

$T - mg = ma$ with $g = 10\text{ m s}^{-2}$ .
$a = \frac{28000 - 20000}{2000} = 4\text{ m s}^{-2}$ ; positive, so upward.
So the answer is (a) 4 m s $^{-2}$ upwards.

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