Question

un corp in miscare are o energie cinetica de 150g si un impuls de p = 30 N ori s. Determinati masa si viteza corpului. E URGENT !! DAU COROANA !!!

Answer 1

p=mv=>m=p/v=30/v
Ec=mv²/2<=>150=30/v*v²/2<=>150=15v=>v=150/15=10 m/s
m=30/v=30/10=3 kg