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Post-UTME General Knowledge (Current Affairs) 2017 Objective — Question 12

Question 12 of 50 from the Post-UTME Screening (Post-UTME) General Knowledge (Current Affairs) 2017 Objective paper, with the correct answer and a full explanation.

Friction can be reduced by changing from

A. sliding to rollingCorrect
B. rolling to sliding
C. potential energy to kinetic energy
D. dynamic to static

Explanation

Rolling friction is generally lower than sliding friction.

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