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# Quick circular motion question Watch

1. "Calculate the angular displacement in radians of the tip of the minute hand of a clock in:

(a) 1 second.

Is it correct to use the equation θ= 2πft ?

If so, what would the frequency be? I'm thinking either 1 or 1/60 but I'm not sure...
2. I would use the equation you gave, but for me to use it I'd need to find out the frequency. Maybe try to find an equation which allows you to find frequency.
3. Deleted first post as I misread the question.

That's the right equation.

The frequency is the number of revolutions the minute hand makes per second. You can use f = 1/T to work this out, where T is the time (in seconds) it takes for the minute hand to make a full revolution of the clock face.
4. (Original post by jessyjellytot14)
"Calculate the angular displacement in radians of the tip of the minute hand of a clock in:

(a) 1 second.

Is it correct to use the equation θ= 2πft ?

If so, what would the frequency be? I'm thinking either 1 or 1/60 but I'm not sure...
So we know that a full circle is 2pie rads which equals 360 degrees. And if a minute hand travels 1 second hat would be 1/60x2pie. This value is your angular velocity(rads/s). So we now know the angular velocity and the time. Just do feta = w/t.

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