Question: Three books are stacked vertically on an elevator floor. The top book has a mass of 1.5 kg, the midale book has a mass of

Three books are stacked vertically on an elevator floor. The top book has a mass of 1.5 kg, the midale book has a mass of 2.0 kg, and the bottom book has a mass of 2.3 kg. Determine the force that the bottom book exerts on the middle book. if the upward-moving elevator's speed decreases at a rate of 1.8 m/s

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