Sand is being dropped on a conveyor 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:

Question

The given answer in Mv newton

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Answer 1

F=V×dm/dt. By using this

Answer 2

Solution to Your question

Answer 3

F= v× dm/dt

Use this formula

F= v× M newton ( as the sand is being dropped at the rate of M kg/s ie ,dm/dt=M)