diketahui :
s = 3,6 km = ... m
t = 30 menit = ... detik
f = 500 n
ditanya :
a. w ? usaha
b. p ? daya
jawab :
s = 3,6 km = ... m
t = 30 menit = ... detik
f = 500 n
ditanya :
a. w ? usaha
b. p ? daya
jawab :
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Jawaban:
a) 18 × 10⁵ J
b) 1000 watt
Penjelasan:
s = 3,6 km
= 3,6 × 1000
= 3600 m
a) w = F • s
w = 500 • 3600 (
w = 1800000 J atau 18 × 10⁵ J
t = 30 menit
= 1800 detik
b) p = w/t
p = 1.800.000/1800
p = 1000 watt