A person of mass 60 kg is inside a lift of mass 940 kg and presses the button one control panel. The lift starts moving upwards with an acceleration 1.0 m/s2. If g = 10 m/s2, the tension in the supporting cable is :

1200 N 8600 N 9680 N 11000 N

11000 N

T -(m +M) g = (m +M) a ⇒ T = (M+m)(g+a) = (940+60)(10+1)    = 11000 N