The mechanical advantage is infinite. With no applied force, load will not slide, but the slightest negative (downhill) force will cause it to slide.
:#: The mechanical advantage is positive. In the absence of applied force the load will slide down the plane, and requires some positive (uphill) force to hold it motionless

Mechanical advantage using power

The mechanical advantage of an inclined plane is the ratio of the weight of the load on the ramp to the force required to

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