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## Homework Statement

A motor boat is speeding at velocity W0 when the motor is turned off and a scoop is lowered into a still lake. The scoop captures flow with a cross section A. If the initial mass of the boat is M0 and the wave and friction drag are negligible, what is the velocity of the boat as a funtion of time?

## Homework Equations

the momentum equation. I'm not sure how to account for the "scoop" though

## The Attempt at a Solution

I am using the momentum equation but am not sure how to incorporate the effect of the scoop into it.

Any help would be greatly appreciated!