What force, gravity, friction, applied, normal, etc.... keeps us from walking through walls?
Answers
Answer:
no force .
Explanation:
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Answer:
Thus we needed contact force.
Explanation:
Force In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
Gravitational Force Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward one another. On Earth, gravity gives weight to physical objects, and the Moon's gravity causes the ocean tides.
Frictional Force Frictional force refers to the force generated by two surfaces that contacts and slide against each other. A few factors affecting the frictional force: These forces are mainly affected by the surface texture and amount of force impelling them together.