Dik:
w= 19600
v= 72 km/jam =20m/s
Dit= Ek?
Jwb.
Ek = (1/2)mv²
Kita cari m nya dulu
m= w:g = 19600:9,8 = 2000kg
Ek= (1/2)(2000)(20²)
=400.000 J
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Dik:
w= 19600
v= 72 km/jam =20m/s
Dit= Ek?
Jwb.
Ek = (1/2)mv²
Kita cari m nya dulu
m= w:g = 19600:9,8 = 2000kg
Ek= (1/2)(2000)(20²)
=400.000 J