Calculate the velocity ratio of a screw jack of pitch 0.3cm if the length of the tommy bar is 21cm
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Correct Answer: Option D
Explanation:
V.R = \(\frac{2\pi L}{p}\)
= \(\frac{2 \times \pi \times 2}{0.3}\)
V.R = 140\(\pi\)
V.R = \(\frac{2\pi L}{p}\)
= \(\frac{2 \times \pi \times 2}{0.3}\)
V.R = 140\(\pi\)