Science - physics

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Imagine you need to deliver a piano over three steps. A longer ramp translates into less force necessary to raise the piano's height than a shorter ramp would require. Calculate the percentage smaller a force would be required using an 2.8m long ramp compared to a 0.9m ramp?

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    Ms. Sue I hear you are good with these problems could you be of assistance for this one? Thank you!

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