Odpowiedź :
v = v0 + at
f = m*a => a = f/m
v = v0 + ft / m
v = 5 + 0,3*180/2 = 32 m/s (uklad SI)
f = m*a => a = f/m
v = v0 + ft / m
v = 5 + 0,3*180/2 = 32 m/s (uklad SI)
Dane:
m=2kg
V=5m/s
t=3min=180s
F=0.3N
Wzory:
F=m x a a=delta v /t a=(v2-v1)/t
F=[m(v2-V1)]/t
F x t=m(v2-v1)
V2=(Fxt+mxv1)/m
jednostka: [v]=[m/s]
obliczenia:
V2=(0.3x180+2x5)/2
V2=(54+10)/2
V2=64/2
V2=32[m/s]
m=2kg
V=5m/s
t=3min=180s
F=0.3N
Wzory:
F=m x a a=delta v /t a=(v2-v1)/t
F=[m(v2-V1)]/t
F x t=m(v2-v1)
V2=(Fxt+mxv1)/m
jednostka: [v]=[m/s]
obliczenia:
V2=(0.3x180+2x5)/2
V2=(54+10)/2
V2=64/2
V2=32[m/s]