Question

ПОМОГИТЕ МЫ МОЖЕТ ХОДИТЬ,ТАК КАК А)поверхность,по которой мы ходим-твёрдая; Б)мы отталкиваемся от поверхности благодаря трению скольжению В)мы отталкиваемся от поверхности благодаря трению спокойствия

Answer 1

Walking on a Solid Surface

When we walk, there are several factors that allow us to move forward. Let's explore these factors in detail:

A) The Surface We Walk On: The first factor that enables us to walk is the surface we walk on. In order to walk, the surface needs to be solid and stable. A solid surface provides a stable platform for us to push against and move forward.

B) Frictional Sliding: The second factor that allows us to walk is the frictional force between our feet and the surface we walk on. This frictional force helps us to push against the ground and move forward. When we take a step, our foot pushes against the ground, and the friction between our foot and the ground allows us to slide forward. This is known as frictional sliding.

C) Static Friction: In addition to frictional sliding, static friction also plays a role in walking. Static friction is the force that prevents two surfaces from sliding against each other when they are at rest relative to each other. When we take a step, our foot initially comes to rest on the ground before we push against it. The static friction between our foot and the ground allows us to stay in place and then push off to move forward. This is known as static friction.

In summary, when we walk, we rely on the solid surface we walk on, as well as the frictional sliding and static friction between our feet and the ground. These factors allow us to push against the ground and move forward.

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