A man of mass $80\ kg$ is standing inside a lift moving upward with a uniform velocity of $4\ m/s$ then the apparent weight of the person will be
$112\ kg$
$112\ N$
$80\ kg$
$80\ N$
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........... $N$ $(g = 9.8\,m{s^{ - 2}})$
A man of weight $80\, kg$ is standing in an elevator which is moving with an acceleration of $6\,\,m/{s^2}$ in upward direction. The apparent weight of the man will be ......... $N$ $(g = 10\,m/{s^2})$
A boy whose mass is $50\,kg$ stands on a spring balance inside a lift. The lift starts to ascent with an acceleration of $2\,m{s^{ - 2}}.$ The reading of the machine or balance $(g = 10\,m{s^{ - 2 }})$ is ........ $kg$
A mass is hanging on a spring balance which is kept in a lift. The lift ascends. The spring balance will show in its readings
A rocket with a lift-off mass $2 \times 10^4\,kg$ is blasted upwards with an intial acceleration of $5\,m\,s^{-2}$ . The initial thrust of the blast is (Take $g = 10\,m\,s^{-2}$ )