Two forces ?1⃗⃗⃗ =16.0 ? and ?2⃗⃗⃗⃗ =10.5 ? act on a 3.40 kg object. Find the accelerations of the object for the configurations of forces shown in the figure below

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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!