If man is balanced with system, find Tension, reading of weighting machine.

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Solution

Mass of man $= 50 k g$
Mass of box $= 20 k g$
Let $R$ be the apparent weight of man, to be displayed inche machine
$T + R - 50 g = 0$ [from FBD of man]
$T - 20 g - R = 0$ [from FBD of box]
$¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯ R = 15 g i . e,$ weight an machine= $15 k g$
$T = 20 g + 15 g$
$T = 35 g$ take $g = 10 m / s^{2}$
$T = 350 N$

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