PhysicsSimple machinesWAEC
A screw jack has a pitch of 0.5 cm and its handle turns in a circle of radius 35 cm. Find the velocity ratio. [π = 22/7]
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Answer: C. 440
VR = 2πr/p = (2 × 22/7 × 35)/0.5 = 220/0.5 = 440.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.