Question

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 m s^-2,  the tension in the supporting cable is

(a) 8600 N

(b) 9680 N

(c) 11000 N

(d) 1200 N

Answer 1

Correct option  (c) 11000 N

Explanation:

Here, Mass of a person, m = 60 kg, Mass of lift, M = 940 kg,