Na cialo o masie 20 kg dziala sila 200N oblicz predkosc po 10sekundach jesli wspolczynik tarcia wynosi 0,5
Dane
m=20kg
F=200N
t=10s
f=0,5
g=10m/s2
Szukane
T=N*f
N=m*g
Fw=F-T
a=Fw/m
v=?
a=v/t
v=a*t
Obliczenia
N=20kg*10m/s2=200N
T=200N*0,5=100N
Fw=200N-100N=100N
a=100N/20kg=5m/s2
v=5m/s2 * 10s = 50m/s2
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Dane
m=20kg
F=200N
t=10s
f=0,5
g=10m/s2
Szukane
T=N*f
N=m*g
Fw=F-T
a=Fw/m
v=?
a=v/t
v=a*t
Obliczenia
N=20kg*10m/s2=200N
T=200N*0,5=100N
Fw=200N-100N=100N
a=100N/20kg=5m/s2
v=5m/s2 * 10s = 50m/s2