w załączniku jesli to zrobicie niech wam bog w dzieciach wynagrodzi <# xd

A :  Zad.1 a Zad.2 [latex]Dane:\ v = 0,02 m/s\t = 15 min = 15 * 6 0 = 900 s \\Szukane :\s = ? \\rozwiazanie :\ v = frac{s}{t}\s = vt \\s = 0,02 * 900 = 18 m [/latex] Zad.3 [latex]v_1 = 12 [m/s]\v_2 = 2[m/s]\s = 210 m \\t = ? \\v = frac{s}{t}\t = frac{s}{v} = frac{s}{v_1+v_2} \\t = frac{210}{12+2}= 15 s [/latex] Zad.4 a Zad.5 [latex]a = 4 frac{m}{s^2} \Deta v = 10 frac{m}{s}\\s = ? \\s = frac{1}{2}at^2 \\a = frac{Delta v}{Delta t} \Delta t = frac{Delta v}{a} \\Delta t = frac{10}{4}=2,5 s \\s = frac{1}{2}*4 * 2,5^2 = 12,5m[/latex] Zad.6[latex]Dane : \ Delta v_1 = 10 frac{m}{s}\Delta t_1 = 5s\\v_ 2 = 10 frac{m}{s}\t_2 = 5 s \\Delta v _ 3 = 10 frac{m}{s}\Delta t_3 = 5 s \\Delta v_4 = 10 frac{m}{s}\Delta t_4 = 5s \\Szukane :\s = ? \\Rozwiazanie :\s = frac{1}{2}at^2\a = frac{Delta v}{Delta t } \\v = frac{s}{t} \s = vt \\\a_1 = a_3 = a_4 frac{10}{5} = 2 frac{m}{2^2} \s_1_3_4 = 3( frac{1}{2}*2*5^2) = 3 cdot 25 m = 75 m \\s _2 = 10 * 5 = 50 m \\s = s_1+s_2+s_3+s_4 = 75m + 50 m = 125 m [/latex] Zad.7 [latex]m = 12 cdot 5cdot 10 = 600 kg \Q = mg \\Q = 600 [kg ]cdot 10 [ frac{N}{kg} = 6000 [N] [/latex] Zad. 8 ( załącznik ) B: Zad.1  b Zad. 2 [latex]v = 0,7 frac{cm}{s} \t = 30s\\s = ? \\v = frac{s}{t}\s = vt \\s = 0,7 cdot 30 \s = 21m [/latex] Zad.3[latex]v_1 = 10 frac{m}{s}\v_2 = 1 frac{m}{s}\s = 27 m \\t = ? \\v = frac{s}{t}\\t = frac{s}{v} = frac{s}{v_1 - v_2} \\t = frac{27}{10 - 1} = 3 s [/latex] Zad.4 b Zad.5 [latex]Delta v = 15 frac{m}{s}\a = 5 frac{m}{s^2}\\s = ? \\s = frac{1}{2}at^2 \\a = frac{Delta v}{Delta t}\Delta t = frac{Delta v}{a}\\Delta t = frac{15}{5} = 3s \\s = frac{1}{2}*5*3^2 = 22,5m [/latex] Zad.6 [latex]Dane : \ v_1 = 20 frac{m}{s}\t_1 = 10s \Delta v_2 = Delta v_3 = 20 frac{m}{s}\t_2 = t_3 = 10 s\v_4 = 20 frac{m}{s} \t_4 = 10 s \\Szukane :\s = ? \\Rozwiazanie : \ v = frac{s}{t}\ s _1_4= vt \\s_2_3 = frac{1}{2} at^2\a = frac{Delta v}{Delta t}\\s_1 = s_4 = 2(20 * 10) = 400m\\a_2 = a_3 = frac{20}{10} = 2 frac{m}{s^2}\s _2=2_3 = 2(frac{1}{2}*2 * 10 ^ 2) = 200 m s = 200 + 400 = 600 m [/latex] Zad.7 [latex]m = 60 kg * 5 * 5 = 1500 kg \Q = mg \Q = 1500 * 10 = 1500 [N][/latex] Zad. 8 ( załącznik )