Gerak Melingkar Berubah Beraturan

76 Mudah dan Aktif Belajar Fisika untuk Kelas X

2. Gerak Melingkar pada Arah Horizontal

9,8,=43492,092,9;0.:-,,9B,9247,6?6,9;,,+-+ 0=?922?39B,20,6,9B,928090,;6,9;49=4;B,92=,8, ,;,9,743,;,,=6,7,B,9270-43-0=,84=,79B,;,,;08,49,9 :9,92,949203,46,9 46,9,=0,92809?922,924 ;08,49,9 494 9, ,6,9 80,=,6,9 =0:7,3:7,3 =0,92 -020,6 4;0.0;,8094922,76,9;::=;?,,9 9?6809B003,9,6,9;0=:,7,984=,79B,:9,92,94920=0-? =0,92-020,6-07,A,9,9,,35,?85,8092,9607,5?,97490,=0=,, B,920,;=0;044;0743,6,9;,, 9,B,92=0,92 809,464 :9,92,9492 80923,,; 60 ,,3 7?, 749,=,9 8074926, 60.0;,,9=0=,,;,,4464?,,7,3809B4922?9274926,,946,4,6 ,,B,92809,469,,749,,6,9-020,60-,928094922,76,9 749,=,9:9,92,94920-09,9B,9,=0,92-020,64;0.0;, 809?5?60,,3;?=,74926,,9 Gambar 4.6 Gerak penumpang pada permainan ontang-anting. Tes Kompetensi Subbab C ,,+ 07,=6,97,38092,;,;09?8;,92 4,6 5,?36046,=0,92-020,6808-09?674926,,9 046,9,46;08,49,9:9,92,94928092,;,9, 80,=,=0,6,9,6,90708;,,94;0.0;,809?5? 607?,749,=,9:9,92,9492 ?74=6,97,3,;746,=420,68074926,7,499B,4=064, 9, Gambar 4.8 Sebuah titik berpindah dari A menuju B. t = 0 1 2 t = t B A

D. Gerak Melingkar Berubah Beraturan

8,47,3=0-?,3;0947;,,:,=0;0,4=,79B,;0947=0;0,9, =0,92-0;?,8?7,4,4;?,,980948095,4 ;?,,98094 ,49B,;0947:,0=0-?8092,7,84;0?-,3,960.0;,,9=?? 0=,9B,;0?-,3,960.0;,,9=??;,,=04,;446,,7,30,;,8, 092,920,67??=-0?-,3-0,?,9;0.0;,,9401494=46,9=0-,2,4 ;0-,9492,9,9,,;0?-,3,960.0;,,9,9=07,92A,6?05,49B, ;0?-,3,90=0-? 0.0;,,9 ;0?-,3,9 60.0;,,9 =07,92 A,6? ,7,820,68074926,-0?-,3-0,?,9;0.0;,,9=??9B,6:9=,9 ,;,4?74=3?-?92,9=0-,2,4-046? ,,? E 9,60,3?4-,3A, t ,9E 8,6,;0=,8,,99B,8095,4 ,,? E percepatan semu yang dirasakan penumpang v a sp 0;49,3,9B,9247,6?6,9;,4607-0=,9B,,,7,3 2 1 ,7,8 Gambar 4.7 Diagram vektor gerak penumpang Sumber: Dokumentasi Penerbit Di unduh dari : Bukupaket.com 77 Gerak Melingkar =07,92A,6? t 0,4-0=,60.0;,,9=??,,,,,,7,3 t 0=,,9 80?;,6,9-0=,60.0;,,9,,,, 0.0;,,9,,,,,;, 401494=46,9=0-,2,4947,4092,3,460.0;,,9,A,7,960.0;,,9,634 092,908464,9;0=,8,,9 ,;,4?74=6,9=0-,2,4-046? ,,?,;,4?74=6,95?2,,7,8-09?6-046? 092,9808,=?66,9;0=,8,,9 ,6,94;0:703 2 2 E 092,908464,9 08095,4 00,92,9 -0=,=??B,92408;?3, 60.0;,,9=??,A,7,= ;0.0;,,9=??,= A,6?= 46,9,;03,46,9;,,20,67??=-0?-,3-0,?,909B,, 8084746460=,8,,93?-?92,98,08,4=092,920,68074926,-0?-,3 -0,?,97036,09,4?9,,;,809B070=,46,9;0=:,7,9B,92 809B,926?60.0;,,9=??;0.0;,,9=??,9-0=,=??B,92 408;?3092,9;0=:,7,9B,92=,8,092,920,67??=-0,?,9 E 0-,9492,90,6074926,0?-,30,?,9092,90,6??=0?-,30,?,9 , +, ++ , +, , ,,++ t 2 t t 2 2 2 0-?,3:,247,80=4940=07-0;?, ;8:,=4;08094608?4,948,46,9 =034922,:,-0;?,4;07,8-,=,8;,4-03094,7,8A,6? =06:946, ;0.0;,,9=??6:9=,9-0,;,6,74:,-0;?,=0-07?8-03094 Contoh 4.5 Di unduh dari : Bukupaket.com 78 Mudah dan Aktif Belajar Fisika untuk Kelas X 0-?,34468,04-020,68074926,-0?-,3 -0,?,9092,960.0;,,9=??,A,7 ,= 007,3-020,6=4468,040=0-?-03094 09?6,97,3 , ;0.0;,,9B,924,7,844468,04 - -0=,=??B,92408;?3 0-?,38::74=46,460,,,94,8-020,6:,=4 092,960.0;,,9=??6:9=,9=0-0=,,= =07,8, = 08?4,9 8:: 74=46 430946,9 092,9 ;07,8-,,96:9=,9,7,8 ;?,,909?6,97,3 , ;0?-,3,9=??8::74=46 - A,6?B,924;07?6,9=0-07?88::-03094 0-?,380=4980807?6,9A,6?=?9?6-0?-,3,4 60.0;,,9=?? ;88095,4 ;8 , 0,;,6,3;0.0;,,9=??9B, - 0,;,-,9B,6;?,,9B,9247,6?6,9,7,8 A,6?0=0-? 0-?,3:,-0;?,,460,,,94,860 ;8 :,=4;08094,7,8A,6? =4?927,3 , ;0.0;,,9=??:, - -,9B,6;?,,9B,924-?,:, . 6:8;:909;0.0;,,9,9209=4,7,9=094;0,7,4 =0-?,3446B,92-05,,6 .8,4;?=,:,60 46,:,-0;?,092,960.0;,,9=?? ;8 Tes Kompetensi Subbab D ,,+ . 460,3?4 0.0;,,9=??,A,7 ;8;?,,9= +,6?=,8;,4-03094 = 07,8-,,9:,4;0:703092,9;0=,8,,9 E E ;?,,9= = ;?,,9= ?87,3;?,,9434?92092,9 0 t 12 ;?,,9 = E E ;?,,9 ,,-,7,;,9;,,;08-,7,;80844926,9609,,,9,9-,,99B, 6046,807,7?446?92,9092,;,08464,9;,B,9205,4546,;08-,7,;4? 4,680844926,9-,,99B, Mari Mencari Tahu ,,? 0.0;,,9=??401494=46,9=0-,2,4-046? 0=,=?? 08;?3 0.0;,,9 =?? +,6?08;?3 0.0;,,9 =094;0,7 ;,, 20,6 8074926, ,,39B,809?5?446;?=,74926,,9 Rangkuman 0,6-09,B,92749,=,99B,-0?;,74926,,9 4=0-?20,68074926, 06?09=4;,,20,68074926,401494=46,9 =0-,2,4-,9B,69B,;?,,9B,9247,6?6,9;,4607 ,7,8=04,;=,?,9A,6? 04:0 ;,,20,68074926,401494=46,9 =0-,2,4A,6?B,924;07?6,9;,4607?9?6 80908;?3=,?6,74;?,,9 ?-?92,9,9,,106?09=4,9;04:0 ;,,20,68074926,4?74=6,9=0-,2,4-046? Di unduh dari : Bukupaket.com 79 Gerak Melingkar Peta Konsep .449B, 0.0;,,9=??9B, 6:9=,9 .449B, 0,6074926,0?-,30,?,9 044 ,,= 0.0;,,9=??9B, -0?-,3=0.,, 6:9=,9 .449B, 49,=,920,69B, -0?;,74926,,9 0,6074926,0,?,9 Setelah mempelajari bab ini, tentunya Anda dapat menyebutkan contoh-contoh benda yang bergerak melingkar yang ada di lingkungan Anda. Dapatkah Anda menyebutkan manfaat lain? Dari bab ini, bagian manakah Refleksi dari materi bab ini yang Anda pahami? Agar semua materi pada bab ini Anda pahami, cobalah diskusikan dengan teman Anda atau minta penjelasan kepada guru. 4,8,9;08,4,9,9-,9B,640,;6,9;49=4;20,6 8074926,4,9,,9B,,,7,36:,6:,,9600, 7?9.?;,,,,3046,707,494?;08,49,9 :9,92,9492 5?2, 8090,;6,9 ;49=4; 20,6 8074926,;,,,,33:4C:9,7 ,7,8 20,6 8074926, -0?-,3 -0,?,9 ;0.0;,,9=??9B,6:9=,9B,4? Di unduh dari : Bukupaket.com 80 Mudah dan Aktif Belajar Fisika untuk Kelas X 09,46,,6,9-020,68074926,546, , 60.0;,,99B,0,; - 749,=,99B,-0?;,74926,,9 . 749,=,99B,-0?;,2,4=7??= 749,=,99B,,680909? 0 ;0.0;,,99B,0,; ,360.0;,,97490,;,,-09,B,92=0,92-0 20,68074926,,,7,3 , 809?5?;?=,74926,,9 - -0,=,7,4;?=,74926,,9 . 809B4922?92749,=,9,902,67??=5,45,4 74926,,9 8095,?34;?=,74926,,9 0 -07,A,9,9092,9,,320,6 ,9B,69B,;?,,9=04,;=06:9;,,20,68074926, 4=0-? , ;04:0 - 106?09=4 . 60.0;,,9=?? ;0.0;,,9=?? 0 ;,95,92749,=,9 0-?,3-09,-020,68074926,=07,8, 8094 -09,0=0-?07,3807,6?6,9 ;?,,9+,6? B,924;07?6,9-09,?9?6807,6?6,9=,?;?,,9 ,,7,3 , =06:9 - =06:9 . =06:9 =06:9 0 =06:9 03,46,92,8-,-046? 09B,,,9B,92-09,,42,8-,0=0-?,,7,3 , 60.0;,,9 7490, 4 70-43 -0=, ,4;,, 60.0;,,97490,4 - 60.0;,,9 7490, 4 70-43 -0=, ,4;,, 60.0;,,97490,4 . 60.0;,,9 7490, 4 70-43 -0=, ,4;,, 60.0;,,97490,4,9 60.0;,,9 =?? 4 70-43 60.47 ,4;,, 60.0;,,9=??4,9 0 60.0;,,9 7490, 4 70-43 -0=, ,4;,, 60.0;,,9=??4,9 +,.++ ,,+ 0-?,3-09,-020,68074926,092,960.0;,,9 ;809B,,,9B,92-09,,,7,3 , 60.0;,,90=0-?80?;,6,960.0;,,97490, - 106?09=4;?,,99B,,,7,3;?,,9=06:9 . 106?09=4;?,,99B,,,7,3 ;?,,9=06:9 ;04:0;?,,99B,,,7,3 =06:9 0 60.0;,,9=0?9B,:,=4=06:9 446070,640;4;4492,9B,92=0,92-0;?, ,;?9446070,64092,3092,35,45,4 ;4492,90=0-?0-,9492,960.0;,,97490,446 ,9446,,7,3 , - . 0-?,3 -09, B,92 807,6?6,9 20,6 8074926, -0,?,980847464 , 60.0;,,97490,0,; - ;0.0;,,90,; . 60.0;,,9=??0,; ;0.0;,,9092,9,,38095,?34;?=, 0 -0=,;0.0;,,99B,=0-,9492092,960.0 ;,,99B, 0.0;,,9=094;0,7;,,-09,B,92-020,6 8074926,-0,?,9-01?92=4 , 809,8-,360.0;,,9-09, - 808;0,3,96,9,,360.0;,,9 . 8092?-,3,,360.0;,,9 808-046,92,B,,8-,3,9 0 808;0,3,96,9607,5?,9-09, ,?8=0-?,3=0;0,8::809?95?66,9 ,926, ;8-0,460.0;,,9=??;?,,980=49 8::0=0-?,,7,3 , ,= ,= - ,= ,= . ,= 46,=?,?446-020,68074926,092,9;04:00,; =0-0=, 0464460=0-?-020,68074926, , =,?;?,,9=07,8,046092,97,5?0,; - ;?,,9=04,;046092,97,5?,92?70-0?-,3 . ;?,,9=04,;046092,97,5?,92?700,; ;?,,9=04,;046092,97,5?,92?70-0?-,3 0 ;?,,9=04,;046=007,34?4,8 ,7,820,68074926,-0,?,93?-?92,9,9,, ,9 49B,,6,9092,9;0=,8,,9 , - T . R O R v B Tes Kompetensi Bab 4 Di unduh dari : Bukupaket.com 81 Gerak Melingkar 09,B,928,==,9B, 2,8446,6,9;,,?5?92 ,74,943?-?926,9092,9-0-,9807,7?4=0307,4 446,9-0????070,6;,,?5?92,9 ;0092,3,9 5,45,4 =0-?,3 :, B,92 -0;?, -0,?,98,6, , 60.0;,,9=??,960.0;,,97490,9B,=,8, - 60.0;,,9=??,960.0;,,97490,9B,4,6=,8, . 60.0;,,9 =??9B, =,8, 0,;4 60.0;,,9 7490,9B,4,6=,8, 60.0;,,9=??9B,4,6=,8,0,;460.0;,,9 7490,9B,=,8, 0 ;0.0;,,9=??9B,4,6=,8, 4492,9-04,800 .8-0;?,092,960.0;,,9 =?? ,=46,=0-?,34468,04-0,,;,,;49224 ;4492,90=0-?607,5?,97490,9B,=0-0=, , .8= - .8= . .8= .8= 0 .8= 0.0;,,9,74,9,4B,92808?,649.4,4,,7,3 .8=46,2,4=092,3649.4860.0;,,9=?? 649.4,,7,3 , ,= - ,= . ,= ,= 0 ,= ?,?446807,6?6,920,68074926,-0,?,9 =034922,4,;8094808-?, ;?,,946,5,45,4 749,=,99B, .8;0.0;,,9=094;0,79B,,,7,3 , 8= - 8= . 8= 8= 8= 09B,,,9B,92-09,09,92;0.0;,,9=094;0,7 ,,7,3 , ,,39B,8095,?34;?=,74926,,9 - ,,39B,809?5?;?=,74926,,9 . ,,39B,02,67??=5,45,4 ,,39B,-07,A,9,9,,320,6 0 ,,39B,02,67??=-4,92749,=,9 09B,,,9B,92-09,09,92-0=,;0.0;,,9 =094;0,7,,7,3 , -0-,94927??=092,96?,,5,45,4;,, 60.0;,,90,; - -0-,94920-,746092,96?,,5,45,4;,, 60.0;,,90,; . -0-,94927??=092,96?,,60.0;,,9546, 5,45,49B,0,; 4,64;092,?34:7035,45,4 0 4,64;092,?34:70360.0;,,97490, 09, 46,,6,9 -020,6 8074926, -0?-,3 -0,?,9546, , 60.0;,,9=??9B,0,; - 60.0;,,9=??9B,-0?-,3=0.,,-0,?,9 . ;0.0;,,99B,=,8,092,99:7 60.0;,,97490,9B,0,; 0 ;0.0;,,99B,4,60,; 0-?,3:,=0;0,=0,92-0;?,608?4,9408 :,0=0-?,6349B,-03094=007,3 =06:9 07,8,A,6?4?:,=0;0,07,3-0;?,=0-,9B,6 ;?,,946,;07,8-,,9:,,,7,3 ;?,,9= 60.0;,,9=??:,=0-07?847,6?6,9;092008 ,9,,7,3 , ;8 - ;8 . ;8 ;8 0 ;8 . +,+++ 0-?,3-09,-08,==,628092,7,8420,6-0 ,?,9,7,8=?,?749,=,9-0-09?674926,,9B,92 -05,45,4 .8092,960.0;,,97490,8= 09?6,9 , ;04:0;?,,9 - ;0.0;,,9=094;0,7 03,46,92,8-,-046? A B P -09,92 08?4,9-09,4;?,809,,=0;04 ;,,2,8-,,95,92,74,,7,3 .8,9?9?6 -0;?, 6,744-??36,9A,6?=09?6,9 , ;04:0;?,9B, - 60.0;,,97490,9B, . ;0.0;,,9=094;0,7,9,,39B,,9 2,B,=094;0,7,9,,39B, 09,B,928,==,9B, 2,8807,6?6,920,6 8074926,-0,?,9=0-,9B,6 ;?,,94,;8094 ,45,474926,,99B, .8,960.0;,,99B,8= 4?927,3A,6??9?6=,?6,74;?, 0-?,38:-47807,5?;,,=0-?,35,7,9809,, 092,9607,5?,9685,846,5,45,474926,,9-,9 8:-47,,7,3 .8-0,;,6,360.0;,,9=?? ;0;?,,9-,90=0-? 0-?,364;,=,9249-0;?, ;8 Di unduh dari : Bukupaket.com 82 Mudah dan Aktif Belajar Fisika untuk Kelas X , 0,;,6,360.0;,,9=??446B,92070,6 ;,,-,7492-,7492 - 0,;,6,37,5?8,==,446?5?92-,7492-,7492546, ;,95,92-,7492-,7492,,7,3 .8 0-?,3:,-05,45,4 .8-0;?,;,,;::=9B, ,7,8A,6? 046:,0=0-?,;,809.,;,4 60.0;,,9 ;8,460,,,94,8:,0=0-? 4;0.0;,-0,?,9 , 0,;,6,3;0.0;,,9=??:,0=0-? - 0,;,6,3;0.0;,,9,9209=4,7;,,:, 0-?,36,:7-05,45,4.8,7,8A,6?046 60.0;,,9=??9B,-0?-,3,4 ;?,,9=8095,4 ;?,,9= , 0,;,6,3;0.0;,,9=??B,924,7,846,:7 - 0,;,;?,,96,:70=0-?-0;?,,7,8 A,6?046 0-?,3-,98:-47-05,45,4 .846,8:-47,4 60,,,94,8,;,4;0.0;,-0,?,9=034922, ,7,8A,6?04660.0;,,99B,809.,;,4 8= -0,;,6,3;0.0;,,9=??-,907,3-0;?,-0,;, 6,74-,90=0-? 0-?,3,7,;092049280=49.?.4-0;?,;,, 60.0;,,9 ;?,,98094;8,94;07,8-, -0,?,9=034922,-0;?,;,, ;807,8-,,9 4944.,;,4=007,3,7,-0;?, 6,74 , 0,;,6,3;0.0;,,9=??80=49.?.40=0-? - 0,;,6,3 A,6? B,92 4;07?6,9 ?9?6 809.,;,460.0;,,90=0-? 0-?,3-,? 2446,;,,?5?92,74,94;?, 34922,80908;?374926,,9,,B,92-05,45,4 8092,960.0;,,9;?,,9=04,;046 09?6,9;0.0;,,9-,?0=0-? Di unduh dari : Bukupaket.com 83

A. Gaya Memengaruhi