Figure shows a man of mass 50 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, the weight shown by the machine is

Question

Figure shows a man of mass 50 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, the weight shown by the machine is <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/40c691dc083f2bbca583a142a297b9d6-.png" /> (A) 10 N (B) 100 N (C) 800 N (D) 200 N

Tardigrade Admin · Accepted Answer

T=N+30 g .....(i) T+N=50 g ......(ii) <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/04ed98dd3028524fe83dfc70ba930d8d-.png" /> ∴ N=10 g =100 N

$10 N$

$100 N$

$800 N$

$200 N$

$T = N + 30 g ..... (i)$

$T + N = 50 g ...... (ii)$

$∴ N = 10 g$

$= 100 N$

10N

100N

800N

200N

T=N+30g.....(i) T+N=50g......(ii) ∴N=10g =100N

$10 N$

$100 N$

$800 N$

$200 N$

$T = N + 30 g ..... (i)$

$T + N = 50 g ...... (ii)$

$∴ N = 10 g$

$= 100 N$