a) v = s/t : s s = tv b) P = mF : F F = P/m c) E = mgh : h h = E/mg d) K = a/R : R RK = a R = a/K e) y = o,25x: x x = y/0,25 f) k= 1/4n : n 4nk = 1 n = 1/4k g) y=2t-1 :t 2t = y + 1 t = (y+1)/2 h) v= at²/2 :a 2v = at² a = 2v/t² i) R= abc/4P :P 4PR = abc P = abc/4R
1) v=s/t /:t s=v*t 2) P=mF /:m F=P/m 3) E=mgh /:mg h=E/mg 4) K=a/R R=a/K 5) y=0,25x x=y/0,25 6) k=¼n n=k/¼ 7) v=at²/2 /*2 2v=at² /:t² a=2v/t² 8) R=abc/4P /:abc R/abc=4P /4 P=(R/abc)/4
a) v=s/t *t vt=s /v t=s/v b) P=mF /m F=P/m c) E=mgh /mg h=E/mg d) K=a/R *R KR=a /K R=a/K e) y=0,25x /0,25 y/0,25 =x f) k=1/4n *4 n=4k g) y=2t-1 +1 y +1 =2t /2 y+1/2 = t h) V=at2 /2 *2 2V=at2 /t2 2V/t2 =a h) R=abc/4P *4P R4P=abc /4R P = abc/4R