Mechanical Engineering - Engineering Mechanics - Discussion

I think the given Statement is not correct.

There should be momentum conservation. And according to the principle of conservation of momentum, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.

Thanks all for giving explanations.

The principle of Conservation of energy is the 1st Law of thermodynamics.

False.

The principle you mentioned seems to be a mix-up of two different concepts: the conservation of energy and the conservation of momentum.

The principle of conservation of momentum states that the total momentum of an isolated system of objects remains constant if no external forces act on it. This means that in the absence of external forces, the total momentum of the system in any direction remains the same.

The conservation of energy, on the other hand, states that the total energy of an isolated system remains constant over time, and energy can be transferred or transformed but not created or destroyed.

So, the correct statement would be: According to the principle of conservation of momentum, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.

False is the correct answer.

The principle described in your statement is the principle of conservation of momentum**, not energy. According to the principle of conservation of momentum, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.

The principle of conservation of energy states that the total energy of an isolated system remains constant over time.

According to the conservation of energy, the energy can neither be created nor be destroyed but it can only transfer from one system to another or one form to another form.

Energy can't be created nor destroyed it changes the form. Right?