A stationary vehicle with a mass of 900 kg was hit from the rear by a 450-kg vehicle and become entangled, moving along the same path as the moving vehicle. If the smaller automobile was travelling at 15 m/s before the collision. What is its final speed if we exchange the masses of the cars? What is the speed of the entangled cars after the collision?

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A: Apologies. We only answer one question at a time. we will answer the first one as the exact others…

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A: Dear student,                     According to the guidelines I am allowed to answer only one…

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