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, ( )2360 N/m 0.030 m1.10 kg9.8 m/smgk LLmkgΔΔ=⇒ ===When swinging on a hook the wrench is a physical pendulum. From Equation 14.52,
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