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NEET2009PhysicsLaws of MotionActual

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

Options

  1. A14 ~ms ⁻² upwards
  2. B30 ~ms ⁻² downwards
  3. C4 ~ms ⁻² upwards
  4. D4 ~ms ⁻² downwards

Correct answer

C. 4 ~ms ⁻² upwards

Step-by-step solution

aligned & F=m a & T - mg = ma & a = T - mg m =4 ~m / s ^2 aligned

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