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Laws of Motion question

2002 · Q154
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Laws of Motion question

2002 · Q154

NEETPhysicsLaws of MotionMCQ+4 / −1
A lift of mass 1000 kg which is moving with acceleration of 1 m/s2 in upward direction, then the tension developed in string which is connected to lift is
  1. A
    9800 N
  2. B
    10,800 N
  3. C
    11,000 N
  4. D
    10,000 N.
View written solutionFree

Correct answer: B

For a lift which is moving in upward direction with an acceleration a, the tension T developed in the string connected to the lift is given by

T = m (g + a).

Here m = 1000 kg, a = 1 m/s2, g = 9.8 m/s2

∴\therefore∴ T = 1000(9.8 + 1) = 10,800 N.

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