水平方向做功公式

EMC易倍体育еҜ№д№ҷеӣҫзү©дҪ“еҸ—еҠӣеҲҶжһҗ,еҸ—жӢүеҠӣгҖҒйҮҚеҠӣгҖҒж”ҜжҢҒеҠӣе’Ңж‘©ж“ҰеҠӣ,еҰӮеӣҫ2ж№жҚ®е№іиЎЎжқЎд»¶,жңүxж–№еҗ‘yж–№еҗ‘и§Јеҫ—;жҜ”иҫғдёӨејҸ,еҫ—еҲ°;з”ұдәҺдҪҚ移зӣёеҗҢ,еҠӣдёҺж°ҙе№іж–№еҗ‘еӨ№и§’зӣёзӯү,ж№жҚ®жҒ’еҠӣеҒҡеҠҹ水平方向做功公式(EMC易倍体育е®ҡз§ҜеҲҶжұӮзү©дҪ“иҝҗеҠЁи·қзҰ»)(2)O090OеҒҡжӯЈеҠҹ;еҒҡж¶ҲжһҒе·ҘдҪң;=90oдёҚеҒҡеҠҹ(еҪ“еҠӣзҡ„ж–№еҗ‘еһӮзӣҙдәҺдҪҚ移(йҖҹеәҰ)зҡ„ж–№еҗ‘ж—¶,еҠӣдёҚеҒҡеҠҹ3)еҪ“йҮҚеҠӣ(еј№жҖ§гҖҒз”өеңәеҠӣгҖҒеҲҶеӯҗеҠӣ)еҒҡжӯЈеҠҹж—¶,йҮҚеҠӣ(еј№жҖ§гҖҒз”өгҖҒеҲҶеӯҗ)еҠҝиғҪеҮҸе°ҸгҖӮ(4)йҮҚеҠӣ

еҒҡеҠҹзҡ„дёӨдёӘдёҚеҸҜзјәе°‘зҡ„еӣзҙ1)еҠҹзҡ„и®Ўз®—е…¬ејҸ:W=FL2)еҠҹзҡ„еҚ•дҪҚ:з„ҰиҖі,з”Ёз¬ҰеҸ·вҖңJвҖқиЎЁзӨәгҖӮ(2)еҰӮжһңеҠӣзҡ„ж–№еҗ‘дёҺзү©дҪ“зҡ„иҝҗеҠЁж–№еҗ‘еһӮзӣҙ,иҝҷдёӘеҠӣжүҖеҒҡзҡ„еҠҹжҳҜеӨҡе°‘?(1)еҰӮжһңеҠӣзҡ„ж–№еҗ‘дёҺзү©дҪ“зҡ„иҝҗеҠЁж–№еҗ‘

зӣёдҝEMC易倍体育Ўзӣ®еүҚеӨ§е®¶еҜ№дәҺеҸҳеҠӣеҒҡеҠҹзҡ„еҲҶжһҗдёҺи®Ўз®—ж–№йқўзҡ„зҹҘиҜҶйғҪзү№еҲ«жғіиҰҒдәҶи§Ј,йӮЈд№ҲеҗүеҘіеЈ«д№ҹжҳҜеңЁзҪ‘з»ңдёҠж•ҙзҗҶдәҶдёҖдәӣе…ідәҺеҸҳеҠӣеҒҡеҠҹзҡ„жұӮи§Јж–№жі•ж–№йқўзҡ„зҹҘиҜҶеҲҶдә«з»ҷеӨ§е®¶,еёҢжңӣеӨ§е®¶дјҡе–ңж¬ўе“ҰгҖӮеҠҹ

е®ҡз§ҜеҲҶжұӮзү©дҪ“иҝҗеҠЁи·қзҰ»

иғҪе®ҲжҒ’дёҠйқўзҡ„жҳҜдёҚеҒҡеҠҹзҡ„е°„й«ҳеҗ—дҪз®—еҮәе°„зЁӢеңЁз”ЁжұӮеҲқйҖҹеәҰзҡ„е…¬ејҸе°ұиЎҢдәҶж–ңжҠӣиҝҗеҠЁиғҪиҫҫеҲ°зҡ„жңҖеӨ§й«ҳеәҰе…¬ејҸ:ОёдёәйҖҹеәҰдёҺж°ҙе№ійқўеӨ№и§’,gдёәйҮҚеҠӣеҠйҖҹеәҰж°ҙе№іж–№еҗ‘зҡ„йҖҹеәҰжҳҜ:v1=v0Г—cosОёз«–зӣҙж–№еҗ‘зҡ„йҖҹеәҰ

з”ЁеҠЁйҮҸе®ҲжҒ’з®—пјҢй«ҳдёӯзү©зҗҶйўҳе»әи®®й—®дҪ们иҖҒеёҲжҲ–иҖ…жүҫд№йўҳйӣҶгҖӮ

жҜ”еҰӮ:еңЁз«–зӣҙеҗ‘дёҠ,зү©дҪ“е…ӢжңҚйҮҚеҠӣеҒҡеҠҹ,еҠҹзҡ„еӨ§е°ҸдёәW=Gh;еңЁж°ҙе№іж–№еҗ‘дёҠ,зү©дҪ“е…ӢжңҚж‘©ж“ҰеҠӣеҒҡеҠҹ,еҠҹзҡ„еӨ§е°ҸдёәW=fsгҖӮ(дәҢ)еҜ№е…¬ејҸW=Fsзҡ„зҗҶи§Ј(1)е…¬ејҸдёҖиҲ¬ејҸW=Fsеёёз”ЁејҸW=Gh(е…Ӣ

з”өеңәеҠӣзҡ„и®Ўз®—е…¬ејҸжҳҜF=qE,е…¶дёӯqдёәзӮ№з”өиҚ·зҡ„еёҰз”өйҮҸ,EдёәеңәејәгҖӮжҲ–з”ұW=Fd,д№ҹеҸҜд»Ҙж№жҚ®з”өеңәеҠӣеҒҡеҠҹдёҺеңЁз”өеңәеҠӣж–№еҗ‘дёҠиҝҗеҠЁзҡ„и·қзҰ»жқҘжұӮгҖӮз”өзЈҒеӯҰдёӯеҸҰдёҖдёӘйҮҚиҰҒе…¬ејҸW=qU(е…¶дёӯUдёәдёӨзӮ№й—ҙз”өеҠҝе·®е°ұжҳҜ

д»Һе…¬ејҸP=еҸҜзҹҘ,зӣёеҗҢзҡ„ж—¶й—ҙеҶ…еҒҡеҠҹеӨҡзҡ„,еҠҹзҺҮеӨ§;еҒҡзӣёеҗҢзҡ„еҠҹ,жүҖз”Ёж—¶й—ҙе°‘зҡ„,еҠҹзҺҮеӨ§гҖӮвҲөW=FЛҷSвҲҙP==FЛҷvзү©дҪ“еңЁжӢүеҠӣFзҡ„дҪңз”ЁдёӢ,д»ҘйҖҹеәҰvжІҝжӢүеҠӣзҡ„ж–№еҗ‘еҒҡеҢҖйҖҹзӣҙзәҝиҝҗеҠЁ,еҲҷжӢүеҠӣеҒҡеҠҹзҡ„еҠҹ水平方向做功公式(EMC易倍体育е®ҡз§ҜеҲҶжұӮзү©дҪ“иҝҗеҠЁи·қзҰ»)(2)еҒEMC易倍体育ҡеҢҖйҖҹеңҶе‘ЁиҝҗеҠЁзҡ„зү©дҪ“,е…¶еҗ‘еҝғеҠӣзӯүдәҺеҗҲеҠӣ,并且еҗ‘еҝғеҠӣеҸӘж”№еҸҳйҖҹеәҰзҡ„ж–№еҗ‘,дёҚж”№еҸҳйҖҹеәҰзҡ„еӨ§е°Ҹ,еӣжӯӨзү©дҪ“зҡ„еҠЁиғҪдҝқжҢҒдёҚеҸҳ,еҗ‘еҝғеҠӣдёҚеҒҡеҠҹ,дҪҶеҠЁйҮҸдёҚж–ӯж”№еҸҳгҖӮ3)дёҮжңүеј•еҠӣ1.ејҖжҷ®еӢ’第дёүе®ҡеҫӢ:T2