8/18/2019 01 STATIKA PRESENTASE

1/30

8/18/2019 01 STATIKA PRESENTASE

2/30

8/18/2019 01 STATIKA PRESENTASE

3/30

GAYA GESEKN

W

V

f

f = μN

8/18/2019 01 STATIKA PRESENTASE

4/30

GAYA GESEK PD BIDANG MIRING

Disini N = mg cos

f = μN = μmg cos S arat !eatas

! - f- Wsin" = maS arat !e "a#a$

-! # f $ Wsin" = ma

8/18/2019 01 STATIKA PRESENTASE

5/30

APLIKASI GAYA GESEK PD T%B%& MAN%SIA

%oefiien gesek ( ') antara tendon dan k&'it = *+(') persendian t&'ang ,ang digosok dengan min,ak = +

8/18/2019 01 STATIKA PRESENTASE

6/30

8/18/2019 01 STATIKA PRESENTASE

7/30

GAYA PEGAS

8/18/2019 01 STATIKA PRESENTASE

8/30

MOMEN TORKA ( τ )

τ = rF┴ τ = rFsinθ

8/18/2019 01 STATIKA PRESENTASE

9/30

SISTEM PENG%MPIL

8/18/2019 01 STATIKA PRESENTASE

10/30

SISTEM PENGUMPIL PADA TUBUH MANUSIA

τW = τW= r(mg)

τM= τM = r(mg)τW - τM= 0

τW = τM

τ W = τM

Sistem Pengumpil Kel s pe!t m

8/18/2019 01 STATIKA PRESENTASE

11/30

8/18/2019 01 STATIKA PRESENTASE

12/30

τW = τW

τM = τMτW- τM= 0

τW= τM

τ W = τM

S stem Pe g*m+ , Ke,as Ket ga

8/18/2019 01 STATIKA PRESENTASE

13/30

τW= τW

τM= τM

τW- τM= 0

τW= τM

τW = τM, Jika W = 50 N30 cmx50 N = 4 cmxM

M = 1500 Ncm/4 cm =375 N

8/18/2019 01 STATIKA PRESENTASE

14/30

ae-a$ Me!a ! ( M)

%emamp&an &nt&k mengangkat beban

W = a,a Berat M = a,a tot

8/18/2019 01 STATIKA PRESENTASE

15/30

KESETIMBANGAN

012324 56M78 212 =

69M728 M M:N 212 =

2

8/18/2019 01 STATIKA PRESENTASE

16/30

;&sat raarak dari titik

ac&an

. 0ecara grafis

m * m

8/18/2019 01 STATIKA PRESENTASE

17/30

Pe e t*a P*sat Gra0 tas Secara Matemat s

8/18/2019 01 STATIKA PRESENTASE

18/30

Penentu n Pus t G! "it si Se# ! G! $is

8/18/2019 01 STATIKA PRESENTASE

19/30

432%0? 7:8:3

8/18/2019 01 STATIKA PRESENTASE

20/30

432%0? 7:8:3

432%0? 4972N

432%0? %97?4

8/18/2019 01 STATIKA PRESENTASE

21/30

432%0? %:;272

432%0? %2%?

@

1

+A

+A

2

!

!*x = !* os +A! x = ! os +A

8/18/2019 01 STATIKA PRESENTASE

22/30

Lat $a

Bera+a ga a 1t1t+a-a !a! -a,e ga !a massa1ra g 34 !g

( 5t = 46748 m)

8/18/2019 01 STATIKA PRESENTASE

23/30

8/18/2019 01 STATIKA PRESENTASE

24/30

L ti% n &

Be! p G ' Ot t

M p * leng n

m ss +e+ n , -g

. / 01 1

8/18/2019 01 STATIKA PRESENTASE

25/30

8/18/2019 01 STATIKA PRESENTASE

26/30

LATI&AN 8

-Berapa besar ga,a ,ang beker>a pada kaki-Berapa ga,a ,ang beker>a pada s&mb&-@-Berapa ga,a ,ang beker>a pada s&mb&-1-Berapa 3es&'tan ga,a

;erCatikan gambar diba aC 6ika W* = + NE W = +F N pan>ang 2D = G 2BE

8/18/2019 01 STATIKA PRESENTASE

27/30

;erCatikan gambar diba aC. 6ika W* = + NE W = +F N pan>ang 2D = G 2BE 2: = */ 2B kem&dian tent&kan 5*.4orka W*

.4orka W+.4orka 4

H. a,a otot 4I.%omponen ga,a pada s&mb&-x dan s&mb&-,J.3es&'tan ga,a

a. Ga a +a-a t*,a g "e,a!a g 1ra g a g "er- r". D agram ga a 1t1t saat memega g "e"a

8/18/2019 01 STATIKA PRESENTASE

28/30

Berapa besar ga,a 4 >ika B = * NE M = NE "t = + E"m = +

8/18/2019 01 STATIKA PRESENTASE

29/30

;erCatikan gambar di ba aC kem&dian Cit&ng'aC 5 a. komponen ga,a pada s&mb&-x b. komponen ga,a pada s&mb&-, c. res&'tan ga,a

8/18/2019 01 STATIKA PRESENTASE

30/30