Only two forces act on an object (mass=4.19 kg), as in the drawing. Find (a) the magnitude and (b) the direction (relative to the x axis) of the acceleration of the object. +V i I (a) Number i Units 1 145.0⁰ 40.0 N 60.0 N m/s^2 11+x

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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!