Question: A 100 kg block of solid is moved upward by an external force F as shown in the accompanying figure. After a displacement of 10

A 100 kg block of solid is moved upward by an external force F as shown in the accompanying figure. After a displacement of 10 cm, the upper surface of the block reaches a linear spring at its rest position. The external force is adjusted so that the displacement continues for another 10 cm. If the spring constant is 100 kN/m and acceleration due to gravity is 9.81 m/s2, determine
(a) The work done by the external force.
(b) What fraction of the energy transferred is stored in the spring?

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