An object is moving with constant velocity. Which of the following best describes the force(s) acting on the object? A constant net force is acting on the object in the direction of the motion. A constant net force is acting on the object in a direction opposite of the motion. A constant net force is acting on the object in a direction perpendicular to the direction of motion. No forces are acting on the object.

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Q: difference between statics and dynamics in the field of biomechanic

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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!