Odpowiedź:
Dane:
l
h
f
g
a=g(sin(h/l)-f*cos(h/l)
l=at²/2
t=√2l/a
v=a*t
v=[g(sin(h/l)-f*cos(h/l)]*√2l/a
v=[g*sin(h/l-f*g*cos(h/l)]*√2l/a
Ek=0,5m*([g*sin(h/l-f*g*cos(h/l)]*√2l/a)²
Ek=0,5m*[[g*sin(h/l-f*g*cos(h/l)]²*2l/a
Ek=0,5m*[[g*sin(h/l-f*g*cos(h/l)]²*2l/[[g*sin(h/l-f*g*cos(h/l)]
Ek=m*l*g[sin(h/l-f*cos(h/l)]
Wyjaśnienie: