Question
Question: One end of massless rope, which passes over a massless and frictionless pulley P is tied to a hook C...
One end of massless rope, which passes over a massless and frictionless pulley P is tied to a hook C while the other end is free. Maximum tension that the rope can bear is 360 N. With what value of maximum safe acceleration (in ms–2) can a man of 60 kg climb down the rope ?
A
16
B
6
C
4
D
8
Answer
4
Explanation
Solution
T = m(g – a) ̃ 360 = 60(10 – a) ̃ a = 4m/s2