Sam argues that using a longer inclined plane requires more effort because it takes more time to move the load. His friend Mia claims that a longer inclined plane reduces effort because the load is spread over a greater distance.

Who is correct, and why?

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• A Sam is correct because time directly relates to effort.
• B Mia is correct because effort decreases as the distance increases.
• C Neither is correct; the effort depends only on the angle of the plane.
• D Both are correct; longer planes reduce effort but increase time.

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