Odpowiedzi

2009-09-16T15:55:45+02:00
F =ma
Fw = 300 - 100 N
Fw = 200 N
m = Fw/a
m = 200N/0,8 m/s2
m = 250 kg
2009-09-16T16:00:43+02:00
Fw=F2-F1
Fw=300N-100N=200N
m = Fw/a
m = 200N/(0,8 m/s²)
m = 250 kg
2009-09-16T16:21:54+02:00
F = F2 - F1
F = 300N - 100N
F = 200N

F = m*a
m = F/a
m = 200N / 0.8 m/s
m = 250 kg.