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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
Options
(a) 8600 N
(b) 9680 N
(c) 11000 N
(d) 1200 N
Correct Answer:
11000 N
Explanation:
Total Mass = (60 + 940) kg = 1000 kg
Let T be the tension in the supporting cable, then,
T =M (g+a)
⇒ T = 1000(10+1) =11000 N
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An electric bulb has a rated power of 50W at 100 V. if it used on an a.c. source
- The resistance of a bulb filament is 100 Ω at a temperature of 100⁰C.
- A beam of cathode rays is subjected to crossed Electric (E) and Magnetic fields (B)
- A uranium nucleus ₉₂ U ²³⁸ emits an α-particle and a β-particle in succession.
- The instantaneous values of alternating current and voltages in a circuit are given as
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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