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A person of mass 60 kg is inside a lift of mass 940 kg and presses the button on control panel. The lift starts moving upwards with an acceleration 1.0 m/s². If g = 10 ms–2, the tension in the supporting cable is
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- 8600 N
- 9680 N
- 11000 N
- 1200 N
Correct Option: C
Total mass = (60 + 940) kg = 1000 kg
Let T be the tension in the supporting cable, then
T – 1000g = 1000 × 1
⇒ T = 1000 × 11 = 11000 N
