Figure (5-E21) shows a man of mass 60 kg standing on a light weighing machine kept in

Figure (5-E21) shows a man of mass 60 kg standing on a light weighing machine kept in a box of mass 30 kg. The box is hanging from a pulley fixed to the ceiling through a light rope, the other end of which is held by the man himself. If the man manages to keep the box at rest, what is the weight shown by the machine ? What force should he exert on the rope to get his correct weight on the machine ?

[AasthaKashyapCO]

This is one of the best explanation for this question. Thank you so much sir

[engineerfauji]

Sir box se to rope connected hi nhi hai to kya usme tension lag jaegi kya?

[shaivalkumar]

Sir..wo bach nahi sakta hai kya agar wo elevator ko niche girne de..par itna sufficient force(tension) rope par lagaaye ki downward acceleration karib 0.5 m/s² rahe ya itna kam rhe ki wo bach jaaye.
Aisa ho sakta hai kya sir..???

[streta]

Sir sirf is question ke liye 2nd part bohot easy hojaega kyu ki pehle tension 450 pe 150N weight Ara tha and we want his weight 600. So we can easily multiple 450 with 4 to get 600N Newtown hence answer will 1800N

[a.sshorts]

Sir aap ka coaching centre kaha pr hai

[mohammedliyakathali]

Unitary method karoge toh bhi same answer hi aayega

[aryangupta]

sir can we consider the whole life and man to be a system in part 1?