A body of mass $2\, kg$ is hung on a spring balance mounted vertically in a lift. If the lift descends with an acceleration equal to the acceleration due to gravity $‘g’$, the reading on the spring balance will be ....... $kg$
A body of mass $2\, kg$ is hung on a spring balance mounted vertically in a lift. If the lift descends with an acceleration equal to the acceleration due to gravity $‘g’$, the reading on the spring balance will be ....... $kg$
$2$
$(4 \times g)$
$(2 \times g)$
$0$
A body of mass $2\, kg$ is hung on a spring balance mounted vertically in a lift. If the lift descends with an acceleration equal to the acceleration due to gravity $‘g’$, the reading on the spring balance will be ....... $kg$
Reading on the spring balance $= m (g -a)$ and since $a = g$
$\therefore$ Force $= 0$
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