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Prof.Grace
 3 years ago
Sand drops at the rate of 2000 kg/min. from the bottom of a hopper onto a belt conveyor moving horizontally at 250 m/min. Determine the force needed to drive the conveyor, neglecting friction.
Prof.Grace
 3 years ago
Sand drops at the rate of 2000 kg/min. from the bottom of a hopper onto a belt conveyor moving horizontally at 250 m/min. Determine the force needed to drive the conveyor, neglecting friction.

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shubham
 3 years ago
Best ResponseYou've already chosen the best response.0Newton's 2nd law of motion : F + u.dm/dt = m.dv/dt [ for variable mass systems : u is velocity wrt incoming mass, u.dm/dt is thrust ] You can substitute the values.
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