That would be true if the pivot were fixed.nonaJ said:
The law of conservation of energy and momentum states that energy and momentum can neither be created nor destroyed, but can only be transferred or transformed from one form to another.
The conservation of energy and momentum is important because it is a fundamental law of nature that helps us understand and predict the behavior of physical systems. It also allows us to identify and analyze the various forms of energy and how they are related to each other.
No, energy and momentum cannot be lost in a closed system. They can only be transferred or transformed within the system, but the total amount of energy and momentum remains constant.
The conservation of energy and momentum applies to everyday life in many ways. For example, when we throw a ball, the kinetic energy and momentum of our hand is transferred to the ball. When the ball hits the ground, some of that energy and momentum is transferred to the ground, while the rest is converted into heat and sound energy.
There are no exceptions to the law of conservation of energy and momentum. However, in certain situations, such as in quantum mechanics or at the subatomic level, the conservation of energy and momentum may seem to be violated. But this is due to the uncertainty principle and the fact that energy and momentum can exist in different forms at the same time, rather than being truly lost.