An empty box is put on the pan of a spring balance and scale is adjusted to zero.A stream
Channel: Doubtnut
Date: 2020-08-30

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