घर्षण

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(aangrezi:Friction) vah gun jisake karan do visham vastuoan ke madhy pratirodhi bal utpann hota hai, jo ek vastu ko doosare ke sapeksh khisakane ka virodh karata hai, gharshan kahalata hai. vah bal jo sada vastu ki sambhavit gati athava khisakane ki disha mean viparit kary karata hai, gharshan bal kahalata hai. do satah ke madhy sapeksh gati prarambh hone se poorv in satah ke madhy gharshan bal ko sthaitik gharshan kahate haian. jis samay satahoan mean sapeksh gati hoti hai, inake madhy gharshan bal ko gatij oorja gharshan kahate haian. gharshan tin prakar ke hote haian-

1. sthaitik gharshan
2. sarpi gharshan
3. lotanik gharshan

sthaitik gharshan

yadi lak di ka b da gutaka zamin par rakha ho aur use khisakane ke lie bal lagaya jae to vah nahian khisakata. atah donoan satahoan ke madhy ek gharshan bal kary karata hai. is gharshan bal ko hi sthaitik gharshan bal kaha jata hai. isaka pariman lagae ge bal ke barabar tatha disha bal ke viparit hoti hai.

sarpi gharshan

jab koee vastu kisi dharatal par sarakati hai to sarakane vali vastu tatha dharatal ke madhy lagane vala gharshan bal, sarpi gharshan bal kaha jata hai. jaise—bina pahie ki kisi ga di ko zamin par khianchane par ga di tatha zamin ke bich lagane vala bal sarpi gharshan bal hota hai.

lotanik gharshan

jab ek vastu doosari vastu ki satah par ludhakati hai to do satahoan ke bich lagana vale gharshan bal lotanik gharshan bal kaha jata haian. jaise—sabhi vahanoan ke pahiyoan tatha zamin ki satah ke bich lagane vala gharshan bal lotanik gharshan bal hota hai.

gharshan ke karan hi manushy tatha janavaroan adi ka satah par chalana sambhav ho pata hai. kar ya bas mean brek lagane ke lie gharshan uttaradayi hai. gharshan badhane ke lie vahanoan ke pahiyoan ke tayaroan mean bahari satahean khaanchadar bani hoti haian. sabhi mashinoan mean gharshan ke karan ooshma utpann hoti hai aur mashin ke kal–purje ghis jate haian. gharshan ko kam karane ke lie sparshi satahoan ko kuchh snehakoan ke upayog se chikana banaya jata hai. ghoomate shaphtoan ke bich gharshan bal ko kam karane ke lie balabeyariang ya shelar beyariangoan ka upayog kiya jata hai. jo sarpi gharshan ko lotanik gharshan mean badal deta hai. isake kuchh snehak bhi prayog kie jate haian. bhari mashinoan mean graiphait choorn ka prayog snehak ke roop mean kiya jata hai.

gharshan gunaank- do baloan simaant gharshan aur abhilamb pratikriya, ke anupat ko gharshan gunaank kahate haian.

gharshan gunaank Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): \mu ={\frac {F}{R}}

jahaan Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\mathbf {F}} = simaant gharshan

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\mathbf {R}} = abhilamb pratikriya

gharshan gunaank ka koee matrak nahian hota hai, kyoanki yah do baloan ka anupat hai.

gharshan kon- yah vah kon hai, jo simaant gharshan Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\mathbf {F}} tatha abhilamb pratikriya Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\mathbf {R}} ka parinami abhilamb ke sath banata hai.

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): \tan {\lambda }={\frac {F}{R}}=\mu

panne ki pragati avastha

adhar

prarambhik

madhyamik

poornata

shodh

sanbandhit lekh

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