rafli364
Maaf saya bantu nomor 2 saja Diketahui Vo = 72 km/jam = 20 m/s V = 108 km/jam = 30 m/s t = 5 menit = 300 detik ditanya s =.....? jawab V = Vo + at 30 = 20 + 300a 300a = 10 a = 1/30
s = Vot + ½at² s = 20(300) + ½(1/30)(300)² s = 6000 + 1500 s = 7500 meter = 7,5 km
0 votes Thanks 1
cingcang
2][ S = ½ (Vo + Vt) t S = ½ (20 + 30) • 5×60 S = 7500 m ← jwb
3][ h = ½ g t² 160 = ½ • 10 • t² t = √32 = 4√2 s ←
Diketahui
Vo = 72 km/jam = 20 m/s
V = 108 km/jam = 30 m/s
t = 5 menit = 300 detik
ditanya
s =.....?
jawab
V = Vo + at
30 = 20 + 300a
300a = 10
a = 1/30
s = Vot + ½at²
s = 20(300) + ½(1/30)(300)²
s = 6000 + 1500
s = 7500 meter = 7,5 km
S = ½ (Vo + Vt) t
S = ½ (20 + 30) • 5×60
S = 7500 m ← jwb
3][
h = ½ g t²
160 = ½ • 10 • t²
t = √32 = 4√2 s ←