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Calculate the velocity ratio of a screw jack of pitch 0.3cm if the length of the tommy ...

Calculate the velocity ratio of a screw jack of pitch 0.3cm if the length of the tommy bar is 21cm
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A \(\frac{1}{140}\)\(\pi\)
  • B 14\(\pi\)
  • C 70\(\pi\)
  • D 140\(\pi\)
Correct Answer: Option D
Explanation:
V.R = \(\frac{2\pi L}{p}\)
= \(\frac{2 \times \pi \times 2}{0.3}\)
V.R = 140\(\pi\)

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