Question: A (1200-mathrm{kg}) car initially at rest undergoes constant acceleration for (8.8 mathrm{~s}), reaching a speed of (10 mathrm{~m} / mathrm{s}). It then collides with a

A $1200-\mathrm{kg}$ car initially at rest undergoes constant acceleration for $8.8 \mathrm{~s}$, reaching a speed of $10 \mathrm{~m} / \mathrm{s}$. It then collides with a stationary car that has a perfectly elastic spring bumper. What is the final kinetic energy of the two-car system?

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