Jawabanmu

2014-02-10T18:24:18+07:00
Massa = 250 gr= 0,25 kg
s = 125 cm = 1,25 meter
usaha = ....?
jawab :
Usaha = gaya x jarak perpindahan
W = F x s
W= 0.25 x 1,25
W= 0.3125 joule