A mass moves with zero acceleration over a distance of 10 meters; two forces (F1=10 N in magnitude and F2=5 N in magnitude) act on the mass 1) directly along its displacement and 2) directly opposite its displacement, respectively. What can be said regarding the magnitude of the third force acting on the mass (assuming there are only three forces)? |F3|=5 N |F3|=10 N |F3|=15 N |F3|=20 N |F3|=25 N NOTA/need to know the angle at which F3 acts

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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!