At the shaft of an electric sewing machine, the rotational speed is 1200 rpm.
| May 23, 2021 | education
At the shaft of an electric sewing machine, the rotational speed is 1200 rpm. The needle makes one oscillation in one revolution. Determine the period of oscillation of the needle.
To find the value of the oscillation period of the taken sewing machine needle, we will use the formula: T = 1 / ν.
Variables: ν is the rotational speed of the machine shaft (ν = 1200 rpm = 20 rpm).
Calculation: T = 1 / ν = 1/20 = 0.05 s = 50 ms.
Answer: The period of oscillation of the taken sewing machine needle is 50 ms.
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