what is the impact speed when a car moving at 200 km/h bumps into the rear of another ar traveling in the same direction at 84km/h? answer in km/h
Wouldn't the be the relative speed of each (200-84) as compared to the other?
Thats what I initially tried too, but when I tried entering that answer into the program and it told me I had the wrong answer.
1 answer
ANSWER PLEASE!