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    <pre style="white-space:pre-line"><code>Ã¡cÃ´â—ŠG Ã¡bÃ‰W ÃœÃ‰Â°Ã¹M
                                             ? Ã¡cÃ´â—ŠG Ã¡bÃ‰W Ã‰Â¡Â«âˆY Ã³ÂªÃ Â©J Â»Ã dG Ï€eGÆ’Â©dG Ã‰e
â€˜ Â¿Ã‰Ã˜âˆÃ ï¬‚ Â¿Ã‰ÂªÂ°Ã¹L âˆ‘Ã´Ã«Ã j Ã³b . Ã¡YÃ´Â°S Ã–Â°Ã¹Ã Î¼jh âˆ‘Ã´Ã«Ã j Â¿CG Â¬Â«âˆY Ã¡cÃ´M Ã¡bÃ‰W ÂºÂ°Ã¹Ã·G Ã–Â°Ã¹Ã Î¼j Â»Î¼d
Ã³Ë˜Ã¦Ë˜Y ?Ã‰Ë˜ÂªË˜Â¡Ë˜Â«Ë˜Ã Ë˜cÃ´Ë˜M Ã¡Ë˜bÃ‰Ë˜W ihÃ‰Ë˜Â°Ã¹Ã Ë˜J Ï€Ë˜Â¡Ë˜a Ã‰Ë˜Â¡Ë˜Â°Ã¹Ã˜Ë˜f Ã¡Ë˜YÃ´Ë˜Â°Ã¹dÃ‰Ë˜H Ã¸Ë˜Î¼Ë˜dh Ã¡Ë˜Ã¦Ë˜MÃ‰Ë˜Â°Th IÃ’Â¨Ë˜Â°U IQÃ‰Ë˜Â«Ë˜Â°S Ï€Ë˜Ã£Ë˜e Ã¡Ë˜âˆË˜Ã Ë˜Î¼Ë˜dG
Ã¡cÃ´â—ŠG Ã¡bÃ‰W QGÃ³â‰¤e â€˜ ÂºÂ°Ã¹Ã·G Ã¡âˆÃ c Ã´KDÆ’J Ï€g ?ÃˆcCG Ã¡LQÃ³H Â¬ÂªÂ£Ã«j Ã‰ÂªÂ¡jCG QGÃ³Ã·Ã‰c ÃµLÃ‰Ã«H Ã‰ÂªÂ¡eGÃ³Â£Â°UG

                                                                        ? Ã‰Â¡Ã‘Â°Ã¹Ã Î¼j Â»Ã dG
                                           : â€¹Ã‰Ã dG Â¿Æ’fÃ‰â‰¤dG Î©GÃ³Ã®Ã Â°SG ÂºÃ j Ã¡cÃ´â—ŠG Ã¡bÃ‰W ÃœÃ‰Â°Ã¹â—Š

                                                                    1
                                                             Ek = 2 mv2

                          . ÂºÂ°Ã¹Ã·G Ã¡cÃ´M Ã¡bÃ‰W Ek h , ÂºÂ°Ã¹Ã·G Ã¡YÃ´Â°S v , ÂºÂ°Ã¹Ã·G Ã¡âˆÃ c m Â¿GE Ã¥Â«M

CÃ‰aÃ‰Î¼Ã J Â¿CG Â»Ã¦Â©j GÃ²gh , Â¿Æ’fÃ‰â‰¤dG â€˜ Ã‰Â¡ÂªÂ«â‰¤H Ã¤GÃ’Â¨Ã Å¸G Â¢â€ jÆ’Â©J Ã³Ã¦Y Ã¤GÃ³MÆ’dG Â¢Ã¹fÃ‰Å’ Ã¸e Ã³cCÃ‰Ã dG âˆ‚Â«âˆY
Ã³Ã¦Y kg ( m/s)2 Ã…aÃ‰Î¼J Â»gh (J) âˆ«Æ’Ã·G Â»g Ã¡cÃ´â—ŠG Ã¡bÃ‰W IÃ³Mh :Ã“Ã£Âªa Â¿Æ’fÃ‰â‰¤dG â€˜Ã´W â‰ˆâˆY Ã¤GÃ³MÆ’dG

                                          .Ã¡cÃ´â—ŠG Ã¡bÃ‰W Â¿Æ’fÃ‰b â€˜ Ã¡Â«Å¸Ã‰Â©dG Ã¤GÃ³MÆ’dÃ‰H Â¢â€ jÆ’Â©Ã dG

                                                           : (6) âˆ«Ã‰Ã£e

                        .14 m/s Ã¡YÃ´Â°Ã¹H Ã’Â°Ã¹J 1500 kg Ã‰Â¡Ã âˆÃ c IQÃ‰Â«Â°S Ã¡cÃ´M Ã¡bÃ‰W Ã–Â°Ã¹MG

                                                 1         : Ï€â—ŠG
                                          Ek = 2 mv2

                                                 1
                                          E = ( 1500 kg ) ( 14 m/s )2

                                           k2

                                          E = 1.5 x 105 J
                                             k

                                                                            : (7) âˆ«Ã‰Ã£e
                        . 73 J Ã‰Â¡Ã cÃ´M Ã¡bÃ‰Wh 0.21 kg Ã‰Â¡Ã âˆÃ c Ã¢fÃ‰c GPGE IÃ´c Ã¡YÃ´Â°S Ã–Â°Ã¹MG

                                                           : Ï€â—ŠG

           1                  2E                  2E
     Ek =     mv2       v2 =       k      v= k
           2
                              m                    m

              2 (73 J)  v = 695.24 m2/s2  v = 26 m/s
     v=

              0.12 kg

195</code></pre>
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