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Sand is falling on a conveyor belt at the rate of 5k $g s^{- 1}$ . The extra power required to move the belt with a veloctiy of 6 $m s^{- 1}$ is,

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30 W

180 W

150 W

1.2 W

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detailed solution

Correct option is B

F = Additional force to be applied on the belt = vreldmdtvrel = Velocity of sand relative to the belt along its direction..: F = 6 x 5 N = 30 N.: Extra power = FV = 30 x 6 watt = 180 Watt

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Sand is falling on a conveyor belt at the rate of 5kgs-1. The extra power required to move the belt with a veloctiy of 6ms-1 is,

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

Sand is falling on a conveyor belt at the rate of 5k $g s^{- 1}$ . The extra power required to move the belt with a veloctiy of 6 $m s^{- 1}$ is,