dane
h = 84 m
g = 10 m/s2
szukane:
v = ?
Z zasady zachowania energii:
Ep = Ek
mgh = 1/2 *mv^2 /:m
1/2 *v^2 = gh I2
v^2 = 2gh
v = V2gh = V(2 *10m/s2 * 84m)
v = ok.41 m/s
=============
Odp.Szukana prędkość wynosi 41 m/s.
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dane
h = 84 m
g = 10 m/s2
szukane:
v = ?
Z zasady zachowania energii:
Ep = Ek
mgh = 1/2 *mv^2 /:m
1/2 *v^2 = gh I2
v^2 = 2gh
v = V2gh = V(2 *10m/s2 * 84m)
v = ok.41 m/s
=============
Odp.Szukana prędkość wynosi 41 m/s.