An empty box is put on the pan of a spring balance and P scale is a...

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Published on ● Video Link: https://www.youtube.com/watch?v=8NCPuTe9RJw


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An empty box is put on the pan of a spring balance and
P scale is adjusted to zero. A stream of small identical beads, each of mass \( 4.5 \mathrm{gm} \) are then dropped into the box from height \( 7.6 \mathrm{~m} \) at constant rate of \( 100 \mathrm{beads} / \mathrm{sec} \). If the collision between each bead and box is completely inelastic find the reading of the scale, 10 seconds after beads begin to hit the box.
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