system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Would a car going 60MPH rear ending a car going 59MPH have the same impact as a car going 1MPH rear ending a stationary car?

Also would a car going 100MPH rear ending a car going 99MPH have the same impact as a car gong 10MPH rear ending a car going 9MPH?
gpt
Essentially yes, with one big difference.

The relative velocity is the same in all three scenarios so the energy transfer would be the same.

A minor collision can cause loss of control at speed though. If the car loses traction at 100 mph due to a minor bump a serious crash may result.