Question

A block of mass m = 10 kg hangs from ceiling of
an elevator, through a string, as shown in the
figure. If the lift moves up with a constant speed
10 m/s, then the work done by tension in string
Jon mass m, in 2 s writ. an observer on the
6 Sground will be (g = 10 m/s?]
V = 10 m/s
m
T= mg
10x10
CU
foo
(1) 1 kJ
(3) 2 kJ
(2) 3 kJ
(4) 4 kJ​

Answer 1

Answer:

first you tell me what is the meaning of kj I think this is kg