As he starts to push on the stationary couch it experiences a static frictional force. As Langa increases the magnitude of the force with which he pushes, the couch remains stationary, and the magnitude of the Select frictional force Select until it reaches its Select maximum static friction.

Did you know that static friction is the force that prevents an object from beginning to move? It’s like that stubborn couch that refuses to budge no matter how hard you push! This force varies depending on the surfaces in contact and the weight of the object. Each surface has a coefficient of static friction, and once the applied force exceeds this maximum limit, the couch will finally start sliding. In real life, this concept plays a crucial role in everything from driving cars to moving furniture. For instance, when you try to push a heavy object, the static friction works to keep it in place until your force is strong enough to overcome it. If you're moving a couch, make sure to get enough help and use techniques like lifting and sliding efficiently—otherwise, you might just end up as part of the furniture yourself!