Question

Oblicz pęd ciała o masie = 400 kg i V=52km/h

Answer 1

52km/h=52000m:3600s=14,4m/s

p=mv

p=400kg·14,4m/s=5778kgm/s

Answer 2

m=400kg

V=52km/h=52*1000m:3600s=≈14,4m/s

 

p=mv

p=400kg*14,4m/s=5778kg*m/s

 

Odp. Pęd tego ciała wynosi 5778kg*m/s.