Moments, levers and gears

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Question 38
Medium

A student constructs a gear train consisting of three meshing gears arranged in a straight line: Gear A, Gear B, and Gear C.

Three-gear train with Gear A, Gear B, and Gear C

Gear A has 12 teeth, Gear B has 36 teeth, and Gear C has 18 teeth. Gear A is driven clockwise at a rotational speed of fff.

Which option correctly describes the rotation of Gear C?

Clockwise, at a speed of 23f\frac{2}{3}f32​f

Anticlockwise, at a speed of 23f\frac{2}{3}f32​f

Clockwise, at a speed of 32f\frac{3}{2}f23​f

Anticlockwise, at a speed of 32f\frac{3}{2}f23​f

Moments, levers and gears Questions

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