Explain why it is necessary to analyze the dimension of the answer received?

The numerical answer will depend on the units in which physical quantities are measured – speed, time, coordinate. In addition, dimensional analysis allows you to determine the correctness of the result by the coincidence of the dimensions of the quantities.

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.