PhysicsSimple machinesJAMB
A screw jack has a pitch of 0.5 cm and a handle of length 35 cm. Find its velocity ratio. (Take π = 22/7.)
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Answer: C. 440
VR = 2πr ÷ pitch = 2 × 22/7 × 35 ÷ 0.5 = 220 ÷ 0.5 = 440.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.