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00Gibb00

  • 4 years ago

CIRCULAR MOTION - A rock stuck in the tread of a 60.0 cm diameter bicycle wheel has a tangential speed of 3.0 m/s. when the brakes are applied, the rock's tangential deceleration is 1.0 m/s^2. at what time is the magnitude of the rock's acceleration equal to g (9.80 m/s^2)? I get that acceleration = (rw^2) r-hat + (ralpha) t-hat but how does this relate to time? STUCK CIRCULAR MOTION - A rock stuck in the tread of a 60.0 cm diameter bicycle wheel has a tangential speed of 3.0 m/s. when the brakes are applied, the rock's tangential deceleration is 1.0 m/s^2. at what time is the magnitude of the rock's acceleration equal to g (9.80 m/s^2)? I get that acceleration = (rw^2) r-hat + (ralpha) t-hat but how does this relate to time? STUCK @Physics

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