A 0.75-kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.6 m on a frictionless horizontal surface. If the cord will break when the tension in it exceeds 65 N , what is the maximum speed the ball can have?   Express your answer to two significant figures and include the appropriate units.

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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!