geniussss

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The following answers were posted by visitors named geniussss.

E(p)= E(pg) = mgh=1560000 J E(k1)+ Epg(1)= E(k2) +E(pg2) 0+1560000=E(k2)+0 so E(k2)=1560000 Ek=0.5mv^2 so v= 77.46 m/s W(f) = delta E(m) so f*500*-1=E(m(f))-E(m(i)) so f = 1056.12N
17 years ago