<prompt> Hlalosa molao-motheo oa ketso e fokolang.nan  <response>: Instruction in English: Explain the principle of least action. . Response in English: The principle of least action is a fundamental concept in physics, which states that the path taken by a physical system between two points in its configuration space is the one that minimizes the action. The action is a quantity defined as the integral of the Lagrangian along a path, where Lagrangian is a function that describes the dynamics of the system.In other words, the principle of least action states that nature always follows the path of least resistance or effort. For example, when a ball rolls down a hill, it takes the path that requires the least amount of energy to get to the bottom. Similarly, light travels along the path that takes the least time to get from one point to another.The principle of least action has proven to be a powerful tool for deriving equations of motion and is used in numerous fields, including mechanics, electromagnetism, and quantum mechanics. It provides a unifying principle for understanding how physical systems behave and evolve over time. . Response in Sesotho: Molao-motheo oa ketso e fokolang ke mohopolo oa motheo ho fisiks, o bolelang hore tsela e nkiloeng ke tsamaiso ea mele pakeng tsa lintlha tse peli sebakeng sa eona sa tlhophiso ke eona e fokotsang ketso. Ketso ke bongata bo hlalosoang e le motsoako oa Lagrangian tseleng, moo Lagrangian e leng mosebetsi o hlalosang matla a tsamaiso. Ka mantsoe a mang, molao-motheo oa ketso e fokolang o bolela hore tlhaho e lula e latela tsela ea ho hanyetsa kapa boiteko bo fokolang. Ka mohlala, ha bolo e theosa leralleng, e nka tsela e hlokang matla a manyenyane ho fihla tlaase. Ka ho tšoanang, leseli le tsamaea tseleng e nkang nako e nyenyane ho tloha sebakeng se seng ho ea ho se seng. Molao-motheo oa ho etsa bonyane o ipakile e le sesebelisoa se matla sa ho fumana li-equations of motion me o sebelisoa mafapheng a mangata, ho kenyeletsoa mechanics, electromagnetism, le quantum mechanics. E fana ka molao-motheo o kopanyang oa ho utloisisa hore na litsamaiso tsa mele li itšoara joang le ho fetoha ha nako e ntse e ea. 