Question: An engine is mounted on a rigid foundation through four springs. During operation, the engine produces an excitation force at a frequency of (3000 mathrm{rpm}).

An engine is mounted on a rigid foundation through four springs. During operation, the engine produces an excitation force at a frequency of $3000 \mathrm{rpm}$. If the weight of the engine causes the springs to deflect by $10 \mathrm{~mm}$, determine the reduction in the force transmitted to the foundation.

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