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[5%) Problem 2!}: A block of mass m = 2.9 kg is hung om the ceiling of an elevator using a spring of spring constant
[5%) Problem 2!}: A block of mass m = 2.9 kg is hung om the ceiling of an elevator using a spring of spring constant k = 320 Nx'm, as shown in the gure. The acceleration due to gravity is 3'. Find the change in the length AI ofthe spring under the following situations. E? E. 25% Part (a) Elevator going up with constant speed, 5 rnfs. A! = Hints: 0% deduction per hint Hints remaining: i Feedback: 0% deduction per feedback. E i 25% Part (b) Elevator going down with constant speed, 5 rnfs. i a 259'?) Part (c) Elevator going up with increasing speed acceleration of magnitude 1.05 ESE. i a 25% Part (d) Elevator moving up with decreasing speed with acceleration of magnitude I. 05 meters per square second. It: ill.r'-\\ r... In
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