14_P25InstructorSolution

14_P25InstructorSolution - 14.25. Visualize: Please refer...

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14.25. Visualize: Please refer to Figure Ex14.25. Solve: The mass of the wrench can be obtained from the length that it stretches the spring. From Equation 14.41, ( ) 2 360 N/m 0.030 m 1.10 kg 9.8 m/s mg k L Lm kg Δ Δ= ⇒ = = = When swinging on a hook the wrench is a physical pendulum. From Equation 14.52,
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