A Mack truck and a Volkswagen traveling at the same speed have a head-on collision. The vehicle that undergoes the greatest change in velocity will be the

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In a head-on collision between a Mack truck and a Volkswagen traveling at the same speed, the Volkswagen will undergo the greatest change in velocity due to its significantly lower mass compared to the Mack truck. According to the principle of conservation of momentum and Newton's third law, the force exerted on both vehicles is the same, but the effect of this force (change in velocity) is much more pronounced on the less massive vehicle, which in this case is the Volkswagen.

A Mack Truck and a Volkswagen Traveling at the Same