+3 votes
in JEE by kratos

A flat plate is moving normal to its plane through a gas under the action of a constant force F. The gas is kept at a very low pressure. The speed of the plate v is much less than the average speed u of the gas molecules. Which of the following options is/are true?

(A) The pressure difference between the leading and trailing faces of the plate is proportional to uv

(B) The resistive force experienced by the plate is proportional to v

(C) The plate will continue to move with constant nonzero acceleration, at all times

(D) At a later time the external force F balances the resistive force

1 Answer

+3 votes
by kratos
 
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