Respuesta :

AnonymousPerson14

Answer:

vi= 5m/s, Δp=56 kg*m/s, pf=96 kg*m/s

Explanation:

vi:

p=mv

p/m=v

40/8=5 m/s

Δp:

m(vf-vi)

8*(12-5)

8*7=56 kg*m/s

pf:

m*vf

8*12=96 kg*m/s

Hope this helps

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