jwb
ke = 1/2 x massa x kecepatan^2
= 1/2 x 600 kg x 4 m/s^2
= 4.800 J
pe = massa x gravitasi x t
tinggi = jari" x sin 90°
= 8 m x sin 90°
= 8 m
pe= 600 kg x 9,8 m/s^2 x 8 m
= 47.040 J
e = ke + pe
= 4800 J + 47.040 J
= 52.840 J
w = e x putaran
= 52.840 J x 2,5
= 132.100 J
usaha yg dilakukan kincir air utk muter sebanyak 2 1/2 putaran = 132.100 joule
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jwb
ke = 1/2 x massa x kecepatan^2
= 1/2 x 600 kg x 4 m/s^2
= 4.800 J
pe = massa x gravitasi x t
tinggi = jari" x sin 90°
= 8 m x sin 90°
= 8 m
pe= 600 kg x 9,8 m/s^2 x 8 m
= 47.040 J
e = ke + pe
= 4800 J + 47.040 J
= 52.840 J
w = e x putaran
= 52.840 J x 2,5
= 132.100 J
usaha yg dilakukan kincir air utk muter sebanyak 2 1/2 putaran = 132.100 joule