question_answer

. One end of a 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\[m{{s}^{-2}}\]) can a man of 60 kg climb on the rope?

A) 16

B) 6    

C) 4

D) 8

Correct Answer: C

Solution :

[c] \[mg-T=ma\] \[\therefore a=g-\frac{T}{m}=10-\frac{360}{60}=4m/{{s}^{2}}\]