" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
cair = 1 kal/g °C
ΔT = 60 °C
Dit : Q = ?
Jwb : Q = mcΔT
= 50 × 1 × 60
= 3000 kalori.....(B)
Dik : m = 5 kg
R = F1 + F2 + F3 = -15 - 10 + 20 = -5 N = 5 N ke kiri
Dit : a = ?
Jwb : a = R/m
= 5/5
= 1 m/s²....(A)
Dik : Ek1 : Ek2 = 4 : 9
Dit : v1 : v2 = ?
Jwb : Ek1 = (v1)²
Ek2 = (v2)²
4 = (v1)²
9 = (v2)²
√4 = v1
√9 = v2
2 = v1
3 = v2
v1 : v2 = 2 : 3