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A box is put on a scale which is adusted...

A box is put on a scale which is adusted to read zero when box is empty. A stream of pebbles is poured into the box from a height h above it's bottom at a rate `mu` pebbles/sec. each pebble has a mass m. Consider the collision between pebble and box to be completely inelastic. Find the reading of scale after t seconds of falling of pebbles.

A

`mu tmg`

B

`mu mt sqrt(2gh)`

C

`mu m(gt-sqrt(2gh))`

D

`mu m(gt+sqrt(2gh))`

Text Solution

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The correct Answer is:
D
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