Odpowiedź :
II zasada dynamiki : F=ma
m = 3kg
a= vk -v0/t = 8m/s-0m/s / 2s = 8m/s / 2s = 4m/s ^2
F = 3kg * 4m/s^2 = 12 N
m = 3kg
a= vk -v0/t = 8m/s-0m/s / 2s = 8m/s / 2s = 4m/s ^2
F = 3kg * 4m/s^2 = 12 N
m=3kg
t=2s
v=8m/s
F=?
F=ma
a= /\V /t=8/2=4 [m/s^2]
F=4m/s^2 * 3kg=12N
t=2s
v=8m/s
F=?
F=ma
a= /\V /t=8/2=4 [m/s^2]
F=4m/s^2 * 3kg=12N
Dane:m=3kg
t=2s
v=8m/s
Szukane:F=?
F=m*a
a= /\V /t=8/2=4 [m/s^2]
F=4m/s^2 * 3kg=12N
t=2s
v=8m/s
Szukane:F=?
F=m*a
a= /\V /t=8/2=4 [m/s^2]
F=4m/s^2 * 3kg=12N