Hi - I know that the information that I can provide here is too limited for a totally accurate answer, but is it possible to come up with a reasonable estimate? One vehicle, snow tires, on dry pavement, 6 degrees celsius, is motionless. Second vehicle strikes first in the rear. No evidence of any braking. First vehicle is pushed 30 meters. Weight of both vehicles and cargo is approximately 1,800 kilos each. Thank you for any replies.