View
212
Download
0
Category
Preview:
Citation preview
1. Dik : S = 200 m T = 25 sDit : a. laju rata-rata (v) b. kecepatan rata-rata (v-)
Jawab : a V= s/t
V= 200 m/25 s = 8 m/s
b karna titik akhir lintasan berimpit dengan titik awal= 0
v= s/t v= 0 m/25 s = 0 m/s
13°2. R=√a2+b2+2.a .b cos 13
= √√22+42+2.2 .4cos13 = √4+16+16.0,17 = √20+16.1 = √36 = 6
40° 127°
3. μk =FfrFn
= 14060¿
¿
= 2.3 N
Recommended