Car slid on ice lost control was hit by another car who's responsible?

Answer 1

the car that slid out of control is liable for the car that hit him unless that car driver was under the influence or speeding or is not covered by his/her insurance company.

It is the responsibility of all car drivers to drive in a manner suitable for the conditions at the time they are driving. So if it's a cold, icy, winter day, and you lose control of a car on an icy road, it's your fault as you should have been driving in a manner that would not cause you to lose control.

You might get away with losing control on ice, if it was 95o in the shade, as ice would not be reasonably expected at that temperature.