zadanie 1 Vp 2m/s Vk 7m/s t 5s a? s? zadanie2 Vp 0m/s Vk ? t 10s a 3m/s(kwadratową) s? zadanie3 Vp 18m/s Vk 3m/s t? a 1,5 m/s(kwadratową s

zadanie 1 dane: Vp=2m/s Vk=7m/s t=5s a=? a=Vk-Vp/t a=7m/s-2m/s /5s a=5m/s / 5s =1m/s² s=? ----------------------- s=? s=at²/2 s=at²/2 | *2 2s=at² | :2 s=at²/2 s=1m/s * (5s)² /2 = 1m/s * 25s /2 = 25 /2 = 12,5 m zadanie2 Vp=0m/s Vk=? a=3m/s² a=Vk-Vp a+Vp=Vk Vk=a+Vp Vk=3m/s²-0 m/s=3m/s t=10s -------------------- s=? s=at²/2 s=3m/s² * (10s)² /2 = 3m/s² * 100s/2 =300/2=150m zadanie3 Vp=3m/s Vk=18m/s a=1,5 m/s² t=? a=Vk-Vp/t a=Vk-Vp/t |*t t*a=Vk-Vp |:a t=Vk-Vp/a t=18m/s - 3m/s /1,5 = 10s -------------------------------------------- s=? s=at²/2 s=1,5 m/s² * (10s)² /2 =1,5 m/s² * 100s/2= =150 /2 =75 m