1200 kg massali elektromobil akkumulyatorining EYuKi 400 V ga teng. Elektromobil tezligini 30 m/s dan 5 m/s…

a) Kinetik energiyaning kamayishi to‘liq akkumulyatorga o‘tadi deb olinadi: $E=\frac{m(\upsilon_1^2-\upsilon_2^2)}{2}=\frac{1200\cdot(900-25)}{2}=525\,000$ J $=525$ kJ. b) $q=\frac{E}{\mathcal{E}}=\frac{525\,000}{400}=1312{,}5$ C $=1{,}3125$ kC.

Manba: UZBMB namunaviy test topshiriqlari (Milliy sertifikat, Fizika)