A stone tied to the end of a string 20 cm long is whirled in horizontal circle with a constant
speed .The stone makes 12 revolutions in 30 seconds . Find the angular speed of the stone
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Answer:
Frequency f= 12/30 Hz
Angular velocity ω=2πf= 2×12π
/30=75.36/12
rad/s=2.512rad/s
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