thank you sir , i will buy him <| sep |> ruwaterloo Hall of Fame <| sep |> No bjs during RL . Itd be too distracting ! !<| sep |> The coefficient of friction of something already sliding on ice is much less than the static friction . If you have a 2000 kg car sliding at 5 kmhr with a kinetic coefficient of friction of 0 . 05 . It has a kinetic energy of 0 . 52000 kg 5 kmhr 1000 mkm 3600 sh 2 1929 JoulesThe work need to stop the car is the frictional force times stopping distance Force N times distance m Joules Frictional force is mu m g , so 0 . 05 2000 kg 9 . 81 ms 2 981 N . So the car would stop by itself in 1929 J 981 N 1 . 966 meters . Again , this is for a car just sliding across ice with a mu of 0 . 05 , not accelerating i . e . going down a hill . If you could come up with another 1000 N of fictional force , you could stop that slide immediately . Now lets say the coefficient of static friction of rubber to ice is 0 . 1 . That ' s your shoes standing still . Lets say you weigh 200 lbs , or 90 kg . Your frictional force standing still is 0 . 1 90 kg 9 . 81 ms 2 or 88 N . As soon as you exert 88 N of force your shoes will slip . So . uh . in other words no you couldn ' t stop it with your hands . This should be self evident since in the video the sliding car hit a static car and kept going , pushing the static car with it . That static car is going to have a much higher restrictive frictional force than a human would . tldr Don ' t stand in front of a car sliding on ice .