Question: A 61 kg firefighter, starting at rest on the upper floor, slides 8.0 m down a fire pole to the ground. While sliding down

A 61 kg firefighter, starting at rest on the upper floor, slides

A 61 kg firefighter, starting at rest on the upper floor, slides 8.0 m down a fire pole to the ground. While sliding down the pole, 4500 J of energy went into thermal energy, warming up the pole and her hands. What is her speed just before touching the ground?

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