Răspuns :
Ec=mv²/2
m=50kg
v=36km/h=10m/s
Obs. Pa transforma viteza din km/h in m/s se imparte la 3.6 si invers.
36/3,6=10
Ec=50*100/2
Ec=2 5000J
Succes!
m=50kg
v=36km/h=10m/s
Obs. Pa transforma viteza din km/h in m/s se imparte la 3.6 si invers.
36/3,6=10
Ec=50*100/2
Ec=2 5000J
Succes!
Se dă: Ec=mv²/2
m=50kg Ec=50kg*100m-s/2=2500 J=2,5 kJ
v=36km/h=3600m/3600s=10m/s
Ec-?
m=50kg Ec=50kg*100m-s/2=2500 J=2,5 kJ
v=36km/h=3600m/3600s=10m/s
Ec-?