Answer to Question #85641 in Mechanics | Relativity for lily

Question

think Of a sport in which athletes desire to have frictional forces as small as possible and describe what the athlete to do to reduce friction

Answer 1

For example, this is skiing: to reduce the friction of skis upon snow, special ointments are used.

To reduce the force of air resistance (the friction of the air) skaters apply special suits, cyclists do the same; as well as swimmers to reduce friction on the water. In Curling to control the friction force, ice in front of the moving stone is scrubbed with brushes.

Conversely, to increase the friction force between hands and the bar neck barbell lifters use a special powder.