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Apparent weight, spring balance reading or cable tension in an accelerating lift

This type of question, asked 6 times: 2 May 2023 S2, 4 May 2023 S2, 13 May 2024 S2, 21 Apr 2025 S1, 23 Apr 2025 S1, 20 Apr 2026 S1. All 6 questions below, oldest first.

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  1. Question 1

    2 May 2023 S2

    26
    The mass of the lift is 200 kg. When it ascends with an acceleration of 4 m/s24\,\text{m/s}^2, the tension in the cable supporting the lift will be [Given: g=10 m/s2g = 10\,\text{m/s}^2]

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  2. Question 2

    4 May 2023 S2

    38
    The ratio of weight of a man in a stationary lift and weight when the lift is moving downward with a uniform acceleration 'a' is 3:2. Then the value of 'a' is

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  3. Question 3

    13 May 2024 S2

    20
    A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring balance reads 49 N, when the lift is stationary. If the lift moves downward with an acceleration of 5 m/s25\ \text{m/s}^2, the reading of the spring balance will be (g=9.8 m/s2g=9.8\ \text{m/s}^2)

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  4. Question 4

    21 Apr 2025 S1

    24
    A child stands on a weighing machine inside a lift. When the lift is going down with acceleration g/3g/3, the machine shows a reading 20 N. When the lift goes upwards with acceleration g/3g/3, the reading would be ( g=g = gravitational acceleration)

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  5. Question 5

    23 Apr 2025 S1

    9
    The weight of man in a stationary lift is w1w_{1} and when it is moving downwards with uniform acceleration ' aa ' is w2w_{2}. If the ratio w1:w2=4:3w_{1}:w_{2}= 4:3, then the value of ' a ' is ( g=g = acceleration due to gravity)

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  6. Question 6

    20 Apr 2026 S1

    104
    The weight of man in lift moving in upward direction with an acceleration 'a' is 660660 N. When the lift moves in the downward direction with the same acceleration, his weight is found to be 380380 N. The real weight of the man when the lift is at rest is

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