September 2018 2 25 Report
Suatu benda yg massanya 2 kg di lemparkan ke atas..Ketika mencapai ketinggian 4 m, kecepatannya 5 m/s. bila percepatan gravitasi 10 m/s, maka energi mekaniknya....
A.100 j
B. 105 j
C.112 j
D.120 j
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