Answer:
True
Explanation:
the machine shown in figure 9.9 is called a wheele and axle. It's a form of lever. the effort arm can rotate in a complete circle, which is the center of the axle.
It is false that wheel and axle are a rotating lever that move around an effort arm.
The effort arm or applied force arm is the segment of the lever to which the effort, or input force, is applied.
A wheel and axles are indeed a rotating lever that revolves around a pivot point. The effort arm is the spacing between the inner and outer edges of the wheel.
Thus, the given statement if false.
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