Question
Question: A mass 1 kg is suspended by a thread. It is (i) Lifted up with an acceleration 4.9 ms<sup>–2</sup> ...
A mass 1 kg is suspended by a thread. It is
(i) Lifted up with an acceleration 4.9 ms–2
(ii) Lowered down with an acceleration 4.9 ms–2
The ratio of tensions in the thread is -
A
3 : 1
B
1 : 3
C
1 : 2
D
2 : 1
Answer
3 : 1
Explanation
Solution
T1 = m(g + a0) and T2 = m (g – a0)
\ T2T1=m(g−a0)m(g+a0)=13