When an empty lift is moving down with an acceleration of ms-2, the tension in the cable is 9000N. When the lift is moving up with
an acceleration of ms 2, the tension in the cable is
(A) 16,000 N
(B) 18,000 N
(C) 12,000 N
(D) 15,000 N
Answers
Answered by
2
Answer:
(A) 16000 N
Explanation:
T
1
=m(g−a)=m(g−
4
g
)=
4
3mg
=9000N
mg=12000N
T
2
=m(g+a)=m(g+
3
g
)=
3
4mg
=
3
4×12000
=16000N
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