Question: A rock tied to a string spins in a horizontal circle of radius 1.5 m, with the string making an angle with the horizontal,

A rock tied to a string spins in a horizontal circle of

A rock tied to a string spins in a horizontal circle of radius 1.5 m, with the string making an angle with the horizontal, as shown below. The speed of the rock is 10 m/s. (a) Calculate the angle made by the string with the horizontal; (b) Determine the horizontal force on the rock causing its circular motion; (c) What is the frequency of the rock's the circular motion? r

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