Odpowiedzi

2010-01-03T11:32:29+01:00
60kg * 3m/s - 50kg * 2m/s = v3(m1+m2)
180kg *m/s - 100kg *m/s = v3(60kg + 50kg)
80kg *m/s = 110kg v3
110kg v3 = 80kg *m/s
v3 = 0,73 m/s