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Calculate the velocity ratio of a screw jack of pitch 0.2cm if the length of...

Physics
JAMB 2019

Calculate the velocity ratio of a screw jack of pitch 0.2cm if the length of the tommy bar is 23cm

  • A. 230\(\pi\)
  • B. 23\(\pi\)
  • C. 70\(\pi\)
  • D. 140\(\pi\)
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Correct Answer: Option A
Explanation

P = 0.2cm, L = r = 23cm

VR = 2πr
P		 = 2πL
P		 = 2π×23
0.2		 = 230π

There is an explanation video available below.

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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Explanation Video

WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts