pengendara sepeda motor mempercepat laju kendaraan dari 36 km/jam menjadi 108km/jam dalam waktu 5 sekon. apabila massa sepeda motor dan pengemudi sebesar 280kg,gaya mesin untuk mempercepat laju kendaraan sebesar...
A.1.050N
B.1.120 N
C.1.500 N
D.2.800 N
Answers
Answered by
0
Answer:
A
Explanation:
Answered by
3
vo = 36 km/jam = 10 m/s
vt = 108 km/jam = 30 m/s
t = 5s
m = 280 kg
F = ?
jawab :
vt = vo + at
30 = 10 + 5a
20 = 5a
a =4m/s²
F = mxa
F = 280 x 4
F = 1120 N
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