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

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 ms-2, the tension in the supporting cable is (A) 8600 N (B) 9680 N (C) 11000 N (D) 1200 N

Tardigrade Admin · Accepted Answer

The tension in the string is given as follows T = m ( g + a ) By substituting the values of mass and acceleration given in the question we get T =1000 ×(10+1) =11000 N

Q. A person of mass $60 k g$ is inside a lift of mass $940 k g$ and presses the button on control panel. The lift starts moving upwards with an acceleration $1.0 m / s^{2}$ . If $g = 10 m s^{- 2}$ , the tension in the supporting cable is

8600 N

9680 N

11000 N

1200 N

The tension in the string is given as follows
$T = m (g + a)$
By substituting the values of mass and acceleration given in the question we get
$T = 1000 \times (10 + 1)$
$= 11000 N$

Q. A person of mass 60kg is inside a lift of mass 940kg and presses the button on control panel. The lift starts moving upwards with an acceleration 1.0m/s2. If g=10ms−2, the tension in the supporting cable is