Four forces act on an object, given A = 34.3 N east, B = 48.3 north, C = 70.7 N west, and D = 92.7 N south. Assume east and north are directed along the + x-axis and + y-axis, respectively.) (a) What is the magnitude of the net force (in N) on the object. (b) What is the direction of the force? (Enter your answer in degrees counterclockwise from the +x-axis)

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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!