Bang muin mendorong gerobak baksonya dg kecepatan 2,298 km/jam. jika selama 30 menit roda gerobak berputar 250 kali, berpakah jarijari roda gerobak tsb ?
Andriaeko
2.298 km/jam * 0.5 jam =1.149 km 1.149 km /250 = 0.004596 km = 4.596 m = keliling roda pi*diameter = 4.596 = 3.14 *d d= 4.596/3.14 =1.46 m jari-jari = 1/2 diameter = 0.73 m
1.149 km /250 = 0.004596 km = 4.596 m = keliling roda
pi*diameter = 4.596 = 3.14 *d
d= 4.596/3.14 =1.46 m
jari-jari = 1/2 diameter = 0.73 m