# Tell us about the system of actions (algorithm) when solving problems for the application of: a) the law of conservation of momentum;

Tell us about the system of actions (algorithm) when solving problems for the application of: a) the law of conservation of momentum; b) the law of conservation of total mechanical energy. a)
1 Select reference system
2 Consider a system of interacting bodies
3 Determine the impulses of the bodies of the system before and after interaction
4 Apply the law of conservation of momentum to a system of interacting bodies, write it down in vector form and in projections onto the coordinate axis
5 Solve the equation for the desired physical quantity
6 Substitute numerical data and hang up the answer
b)
1 Select reference system
2 Consider a system of interacting bodies
3 Select at least two positions of the body (system of bodies) and determine for them the kinetic potential and total mechanical energy
4 Determine the zero level of potential energy
5 Write down the equation of the law of conservation of total mechanical energy for the selected position of the body
6 Solve the equation for the desired physical quantity
7 Substitute numerical data and record the answer Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.