Sand is falling on a conveyor belt at the rate of 5kg s^(-10. The extra power required to move the belt with a velocity of 6ms^(-1) is,

Sand is falling on a conveyor belt at the rate of 5kg s^(-10. The extr

1.	Sand is falling on a conveyor belt at the rate of 5kg s^(-10. The extra power required to move the belt with a velocity of 6ms^(-1) is,
Answer» 30W 180W 150W 1.2W Answer :B