Sand from a stationary hopper falls on a moving conveyor belt at the rate of 6.62 kg/s, as shown in the figure. The belt is supported by frictionless rollers and moves at 0.618 m/s under the action of a horizontal external force supplied by the motor that drives the belt. F_ext .

 

Find the frictional force exerted by the belt on the sand. Give answer in units of N.

Transcribed Image Text:

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