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A screw jack whose pitch is 2mm, is used to raise a motor car of...

A screw jack whose pitch is 2mm, is used to raise a motor car of mass 900kg through a height of 20.0cm. The length bar of the jack is 40cm. if the jack is 60% efficient, calculate the: a) velocity ratio b) mechanical advantage of the jack c) effort required d) work done by the effort. g=10m/s^2.?
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Asked by daniel on 3rd November, 2021
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
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
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
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709