Dre4mzidn
Answered

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(only answer if you know the answer or I'll report) Solve it w the steps tysm​

Only Answer If You Know The Answer Or Ill Report Solve It W The Steps Tysm class=

Sagot :

Answer:

 v_f = 20 m / s

Explanation:

For this exercise let's use the relationship between momentum and moment

        I = Δp

        F t = m v_f - m v₀

as the body starts from rest v₀ = 0

        F t = m v_f

        v_f = [tex]\frac{F t}{m}[/tex]

let's calculate

        v_f = 4 2 / 0.4

         v_f = 20 m / s

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