Answer :

TheMaster999
E=274J
h=140cm=1,4m
g≈9,8m/s²

m=?

E=mgh
m=E/gh=274J/9,8m/s²*1,4m≈20kg



"Non nobis Domine, non nobis, sed Nomini tuo da gloriam."



Regards M.Y.

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