A couch is on a ramp that is inclined 21° to the horizontal, as shown. To prevent the couch from sliding, a force Q of magnitude 130 N is required. The figure is not drawn to scale. P 21° GV Complete the following. Do not round any intermediate computations, and round your answers to the nearest hundredth. (a) Find the magnitude of the force C of the couch against the ramp. IN (b) Find the weight of the couch, represented by force G. ON

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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!