Press Off!
 
For an ice skater to propel themselves forward, they use the blades of their skates to press against the ice at about a thirty-five degree angle. What this does is creates a force diagonal to your body that propels you in that direction.The following strides from the skater will send them side to side, only getting rid of the perpendicular component of force while keeping the forward portion of it. Because the friction between the metal blades and the ice is very small, this lets the skater conserve momentum between strides and also glide when needed
 




                                                                                          












































  




                                                                                                                
              Source: https://www.real-world-physics-problems.com/physics-of-ice-skating.html