A boat moves through the water with two horizontal forces acting on it. One is a 2000N forward push caused by the motor; the other is a constant 1800N resistive force caused by the water. a) What is the acceleration of the 1000k boat? b) If it starts from rest, how far will it move in 10:0s? c) What will its speed be at the end of this time?

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!