kaarya (bhautiki)

bhautiki mein kaarya (work) hona tab maana jaata hai jab kisi vastu par koi bal lagaane se vah vastu bal ki disha mein kuchh visthaapit ho. doosare shabdon mein, koi bal lagaane se bal ki disha mein vastu ka visthaapan ho to kehte hain ki bal ne kaarya kiya. kaarya, bhautiki ki sabse mahatvapoorn raashiyon mein se ek hai. kaarya karne ki dar ko shakti kehte hain. kaarya karne ya karaane se vastuon ki oorja mein parivartan hota hai.

kisi vastu par F bal lagaane par vah vastu bal ki disha mein d doori visthaapit ho jaaya to kiya gaya kaarya

hoga.

udaaharan:
10 nyootan (F = 10 N) ka bal kisi vastu par dakshin disha mein lagta hai aur vah vastu dakshin disha mein 2 meter (d = 2 m) visthaapit ho jaati hai to bal dvaara kiya gaya kaarya W = (10 N)(2 m) = 20 N m = 20 J hua. kisi vastu par 5 nyootan ka bal lagaakar use 4 meter visthaapit karne par bhi 20 J hi kaarya hoga (5 N x 4 m = 20 J) .

kaarya ka maatrak 'jool' hai. ise sankshep mein J se niroopit kiya jaata hai. 1 jool = 1 nyootan-meter. kaarya ek adish raashi hai.

kaarya ki maatra ki ganana (jab bal aur visthaapan ki disha alag-alag hon)

yadi kisi vastu par ek niyat bal lagaaya jaaya aur vah seedhi rekha mein (bal ki disha mein ya bal ki disha se alag disha mein) gati kare to kiya gaya kaarya nimnalikhit sootr se nikaala ja sakta hai-

jahaaain:

– bal
– visthaapan


kintu yadi bal ka maan niyat na ho (arthaat parivrtanasheel ho) aur visthaapan bhi ek disha mein na hokar alag-alag dishaaon en ho to is sthiti mein kaarya ki maatra nikaalne ke liye bal aur visthaapan ke sadish gunanafal ka samaakalan karna padta hai. arthaat

jahaaain:

W – kaarya
L – visthaapan-maarg ko soochit karta hai. uparokt samaakalan ki ganana visthaapan-maarg ke sandarbh mein ki jaayegi.
– bal
– visthaapan (sadish)
α – kisi sthaan par bal tatha visthaapan ke beech ka kon

baahari kadiyaaain