Given information
Friction is the force that resists motion when the surface of one object comes in contact with the surface of another.
Step-by-step explanation
As we know the gravitational potential energy is represented by
So as the height increases, the gravitational force increases. So when a hiker at the top of a hill has a huge gravitational force it can be powerful. As the skier begins skiing down the hill, the gravitational force begins to diminish and kinetic energy begins to increase. So when there is no friction, all the potential for ice skating turns into kinetic energy but when there is a collision part of the potential energy changes in the form of heat energy and the remaining part converts into kinetic energy.
When a skier hits a snowdrift, all the kinetic energy converts into the kinetic energy of the snowdrift and heat and the skier relaxes.
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