A boy of $50 \,kg$ is in a lift moving down with an acceleration $9.8\,m{s^{ - 2}}$. The apparent weight of the body is........... $N$ $(g = 9.8\,m{s^{ - 2}})$
$50 \times 9.8$
$0$
$50$
$\frac{{50}}{{9.8}}$
A boy of $50 \,kg$ is in a lift moving down with an acceleration $9.8\,m{s^{ - 2}}$. The apparent weight of the body is........... $N$ $(g = 9.8\,m{s^{ - 2}})$
Apparent weight $ = m\,(g - a)$ $ = 50\,(9.8 - 9.8) = 0$