$P,\,Q$ and $R$ are three balloons ascending with velocities $U,\,4U$ and $8U$ respectively. If stones of the same mass be dropped from each, when they are at the same height, then
$P,\,Q$ and $R$ are three balloons ascending with velocities $U,\,4U$ and $8U$ respectively. If stones of the same mass be dropped from each, when they are at the same height, then
They reach the ground at the same time
Stone from $P$ reaches the ground first
Stone from $R$ reaches the ground first
Stone from $Q$ reaches the ground first
$P,\,Q$ and $R$ are three balloons ascending with velocities $U,\,4U$ and $8U$ respectively. If stones of the same mass be dropped from each, when they are at the same height, then
It has lesser initial upward velocity.