A man weighs $80\,kg.$ He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of $5m/{s^2}.$ What would be the reading on the scale. $(g = 10m/{s^2})$ ............ $N$
A man weighs $80\,kg.$ He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of $5m/{s^2}.$ What would be the reading on the scale. $(g = 10m/{s^2})$ ............ $N$
$400$
$800$
$1200 $
$0$
A man weighs $80\,kg.$ He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of $5m/{s^2}.$ What would be the reading on the scale. $(g = 10m/{s^2})$ ............ $N$
For accelerated upward motion
$R = m\,(g + a) = 80\,(10 + 5) = 1200\,N$
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