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Shimelis Abreham Dede 🇪🇹
Answers (1)
A) a=1.92m/s^2 N-mg=ma N=m(g+a)=79.2(10+1.92)=944 N B) V=const, a=0 N-mg=0 N=mg=79.2*10=792 N C) a=1.89m/s^2 N-mg=-ma N=m(g-a) =79.2(10-1.89)=642.3 N
