A student ties a 500 g rock to a 10-m-long string and
A student ties a 500 g rock to a 1.0-m-long string and swings it around her head in a horizontal circle. At what angular velocity, in rpm, does the string tilt down ata 10^\circ angle?
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a student ties a 500 g rock to a 10-m-long string and swings it around her head in a horizontal circle at what angular
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