Question

alfati energia cinetica a unui corp cu masa 10 g si viteza 36km/h​

Answer 1

Răspuns:

Ec=(mv^2)/2

v=36 km/h

v=36*1000/3600

v=10 m/s

m=10g

m=0.01kg

Ec=(0.01*100)/2

Ec=0.5J