34 PUNKTY | DAJĘ NAJJJJJ Hejka, czy mógłby mi ktoś odpowiedzieć jak wykonać te zadania?

zad.5. m = 2 kg *100 = 200 kg h = s = 20 m g = 10 m/s² = 10 N/kg W = F * s   ................> F = m*g W = m * g * s W = 200 kg * 10 N/kg * 20 m = 40000 J = 40 k J zad. 19 V = 10 m/s g = 10 m/s² Ep = Ek mgh = mV² / 2 /* 2 2mgh = mV² /: 2mg h = V²/2g h = ( 10 m/s)² /2 *10 m/s² = 5 m zad. 24 m₁ = 10 kg g = 10 N/kg r = 2 R  F₁ = m₁ * g F₁ = 10 kg * 10 N/kg = 100 N F₁ * R = F₂ * r F₁ * R = F₂ * 2R 100 N * R = F₂  * 2 R F₂ = 100 N * R / 2 R F₂ = 100 N /2 F₂ = 50 N zad.25. m = 100 kg  l = 4 m F = 400 N h = ? E = mgh  ..............> E = W = F * l h = F*l / mg h = 400 N * 4 m / 100 kg  *10 N/kg = 1,6 m