Q: A lift of mass 1000 kg is moving with an acceleration of 1 m/s2 in upward direction. Tension developed in the string, which is connected to the lift is (g = 9.8 m/s2)
(a) 9,800 N
(b) 10,000 N
(c) 10,800 N
(d) 11,000 N
Click to See Answer :
Ans: (c)
Sol: T = m(g+a)
T = 1000(9.8+1)
T = 10,800 N