Kak nomor 114 dan 115 apa ya kak? Mohon dibantu ya kak. Terima kasih.
More Questions From This User See All
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Jawaban:
114) A
115) D
Penjelasan:
Pembahasan Nomor 114
Vt = S1 + S2 + ... Sn : T1 + T2 + ... Tn
Vt = 3 km + 8 km + 20 km : 5 menit + 10 menit + 15 mnt
Vt = 31 km : 30 menit
Vt = 31 km : ½ jam
Vt = 31 km × 2/1 jam
Vt = 62 km/jam ✔
Jadi, Kelajuan rata - rata adalah 62 km/jam (Pilihan A)
Pembahasan Nomor 115
Vo = 0 m/s
t = 2 menit = 120 sekon
Vt = 30 m/s
a = _____ ❓
Percepatannya ⬇️
Vt = Vo + a × t
30 = 0 + a × 120
30 = 120a
a = 30 : 120
a = 0,25 m/s² ✔
Jadi, Percepatannya adalah 0,25 m/s² (Pilihan D)
Materi = Kinematika Gerak Lurus
Level = Senior High School (SHS)