1. Pismeni kolokvij iz fizike za študente FRI (10. 12. 2014)
1.
2. ,
3. ,
4. Ne, ker : ,
5. , ,
⃗v = (20m
s ,−17.3m s ) F = 250N A = 60.9J h = 1.6cm ΔW = 0.12J
WpK >WkZ WpK = 0.15J WkZ = 0.056J v(t) =v0ln(
mV +mk
mV +mK − Φmt) a(0) = v0Φm
mV +mK = 0.31m s2 vK = v0ln(
mV+mK
mV )= 1.17m s