Diket = v = 10 m/s
Ek = 300 J
Ditanya = Ek bila v = 20 m/s. ?
Jawab =
Ek = ½.m.v²
300 = ½m. 10²
300 = ½m. 100
½m = 300/100
½m = 3
m = 3/½
m = 3 x 2
m = 6 Kg
= ½.6.20²
= 3.400
= 1200 J
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Diket = v = 10 m/s
Ek = 300 J
Ditanya = Ek bila v = 20 m/s. ?
Jawab =
Ek = ½.m.v²
300 = ½m. 10²
300 = ½m. 100
½m = 300/100
½m = 3
m = 3/½
m = 3 x 2
m = 6 Kg
Ek = ½.m.v²
= ½.6.20²
= 3.400
= 1200 J