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NEET 2008 (AIPMT) · Impulse & Momentum Conservation

Impulse & Momentum Conservation question from NEET 2008 (AIPMT)

Q18NEET 2008 · AIPMTEasy

Impulse & Momentum Conservation

Sand is being dropped on a conveyer belt at the rate of M kg/s. The force necessary to keep the belt moving with a constant velocity of $v$ m/s will be:

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Answer: (c)

Sand must be given speed $v$ , so $F = v\frac{dm}{dt}$ .
$F = v \times M = Mv$
So the answer is (c) $Mv$ newton.

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