AKPER PEMKAB MUNA

1. 1. X = X표 + ΔX
= 0,8 + 0,03
= 0,83
2. X = Xo + ΔX
= 3,5 + 0,20
= 3,70 mm
7
6
5
4 R B
3
2 a
1
0 1 2 3 4 5 6
2 2 y x R
= 2 2 8 6 
= 100
= 10 satuan
5. 2 2 R  x  y
= 3 2 3  4
= 5
ΣFx = x x x F F F1 2 3  
= o o o F Cos60 F Cos60 F Cos60 1 2 3  
= 30 x 0,5 + 20 x 0,5 + 10 x 0,5
= 15 – 10 – 5
= 0
ΣFy = y y y F F F1 2 3  
= F Sin60 o  F Sin60 o 
F Sin60 o 1 2 3 = 30 x 1 3
+ 20 x 3
2
1 -
2
10 x 3
2
1
= 15 3 + 10 3 - 5 3
= 20 3
u/ sumbu x
10 – 2 = 8
u/ sumbu y
- 6

2. 2 2 r  x  y
=  2 2 8   6
= 100
= 10 m arah tenggara
Dik : V m s t  90 /
V 10m/ s 0 
t = 20 s
dit : S = ….
Peny:
V

V  0
t
a t

=
90 10
20
= 4 m/ 2 s
1
S = 2
. at t Vo 
2
1
= 10x20  x 4 x
20
2 2
= 200 + 800
= 1000 m
3 detik pertama
S1 = ½ x alas x tinggi
= ½ x 3 x 40
= 60 m
S2 = Panjang x Lebar
= 2 x 40
= 80 m
S = S1 + S2
= 60 + 80
= 140 m
Perlambatan terjadi pada garis grafik CD
v
t
a



F 0  5
ma
a 
F - f 2
- W =
g Bm 
m a A B F -
= - 2,5 m/ 2 s
m g m g m m a k A B A B  . .  .  
F - 0,1 x 30 x
10 – 20 x 10
= (20 +30) 2
F - 30 – 200
= 100
F = 100 +
230
F
a


3. F
m
a


=
10

3 2
= 2 2 / s m
w

w 2 1
m m
2 1
a


 2
m
/ s 2 30

20 2 3


T w m a A A   1
A A T  m a  w 1
= 2 x 2 + 20
= 24 N