a An object of mass m swings in a horizontal circle on a string of length L that tilts downward at angle Find an expression for the angular velocity b 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 speed, in rpm, does the stri...

Model Use the particle model for the rock which is undergoing unif ...

a. An object of mass m swings in a horizontal circle on a string of length L

Question:

a. An object of mass m swings in a horizontal circle on a string of length L that tilts downward at angle θ. Find an expression for the angular velocity ω.
b. 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 speed, in rpm, does the string tilt down at a 10° angle?

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