Question

Jawaban nomor 9 sama 10 apa kak?

Answer 1

9.
v = 144 km/jam = 40 m/s
m = 1500 kg

Ek = 1/2mv^2
Ek = 1/2.1500.40^2
Ek = 1/2.1500.1600
Ek = 1500.800
Ek = 1200000 J = 1200 kJ

10.
F = 400 N
s = 4 m
W = F.s
W = 400.4
W = 1600 J

Answer 2

9. Diket = v = 144 km/jam = 40 m/s
m = 1.500 kg
Ditanya = Ek ....?
Jawab = Ek = 1/2.m.v²
= 1/2. 1500 kg. 40²
= 1/2. 1500 kg. 1600 m/s
= 1500 kg. 800 m/s
= 1.200.000 J
10. Diket = F = 400 N
s = 4 meter
Ditanya = W .....?
Jawab = W = F. s
= 400 . 4
= 1600 J

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