Menghitung Perpindahan dan Jarak dari Grafik Kecepatan terhadap Waktu

Mudah dan Aktif Belajar Fisika untuk Kelas XI 10 -7=EAC B7C57B3E3 D74F3: 4763 J39 47C97C3= B363 4;639 J3;EF B363DF?4F:AC;KAE3DF?4F-63DF?4FG7CE;=3DF?4F- ;3;J3 3633: a a P 63BF 47D3C B7C57B3E3 C3E3C3E3 ?7?7F:; B7CD3?33 2 2 x y a a P 7E7C393 B7C57B3E3 C3E3C3E3 ?D a 47D3CB7C57B3E3B363DF?4F-?D a 47D3CB7C57B3E3B363DF?4F- ?D

b. Percepatan Sesaat

7B7CE;B363=757B3E3D7D33EB7C57B3E3D7D33E97C3=D74F3:B3CE; =7 ?7?4FEF:=3 D739 H3=EF J39 D393E D;9=3E J3;EF ?767=3E; A 36; B7C57B3E3 D7D33E ?7CFB3=3 EFCF3 B7CE3?3 63C; B7CD3?33 =757B3E3 FEF= D739 H3=EF ?767=3E; A ;? ;? 3 t 3 d dt P 7C57B3E3D7D33E?7CFB3=3EFCF3=76F363C;8F9D;BAD;D;=3C73 3 7:=3C73;EF 3 P +3:F=3: 63 53C3 ?7FF==3 BCAD7D ;?;E 633? ?77EF=3 B7C57B3E3D7D33E47C63D3C=39C38;=,EF=?797E3:F;J3B7C:3E;=3 + 363 + 63 + G7=EAC 3 63 3 ?7CFB3=3 G7=EAC =757B3E3 B363 D33E 63 D7639=3 3 ?7CFB3=3 B7CF43:3 =757B3E3 6;4F3E E7E3B D7639=3 6;4F3E ?767=3E; D7:;993 7C63D3C=3 678;;D; 3 ?7?;;=; 3C3: J39 D3?3 6793 3 7: =3C73 ;EF ?7?;;=; 3C3: J39 D3?3 6793 3 =7E;=3 ?767=3E; A 363 D33E 6;53B3; D7B7CE; 6;EFF==3 + 633 6;EFF==36793633D7:;993 ?736; -7=EAC B7C57B3E3 D7D33E D73F ?736; D;D; 79=F9 ;E3D3 E;E;= ?3E7C; D7639=3 G7=EAC =757B3E3 3 E7E3B ?7J;99F9 ;E3D3 6; ;=3B3CE;=747C97C3=B3634;639 6;63B3E=A?BA7=A?BA7 B7C57B3E3 47C;=FE ;; 3 d d dt dt y x dv dv dt dt 63 E7EF E73: ?797E3:F; 43:H3 63 793 67?;=;3 63 D7:;993 2 2 2 2 d y d x dt dt P Gambar 1.11 Percepataan sesaat a = lim t t v merupakan percepatan pada saat t 2 – t 1 menuju nol atau t menuju nol. 3 4 5 y x v 2 v 1 v 1 v 1 t 1 t 2 v 2 t v a v 2 v 1 t v a y x a t 1 v 2 t 2 y x t v v 1 Analisis Gerak 11 74F3:B3CE;=747C97C3=6793B7CD3?33=73F3 P6793 633??D63633?D7=A+7EF=33: 3 47D3CB7C57B3E3C3E3C3E397C3=B3CE;=7FEF=DD3?B3;6793 D 4 47D3CB7C57B3E33H3B3CE;=763 5 47D3CB7C57B3E3B3CE;=7B363D33ED7=A 4 3 7CD3?33=757B3E33633: P ,EF= D P ?D ,EF= D P ?D a ?D 4 7CD3?33B7C57B3E36;B7CA7:63C;EFCF3B7CE3?3B7CD3?33=757B3E3J3;EF d dt P P 7D3CB7C57B3E33H3B3CE;=7B363D33E 3633: P PP?D 5 7D3CB7C57B3E3B3CE;=7B363D33ED7=A3633: PP?D Tugas Anda 1.3 Jika Anda naik mobil dan duduk di sebelah sopir, coba perhatikan bagaimana gerakan speedometer mobil. Diskusikan bersama teman Anda bagaimana pengaruhnya terhadap percepatan mobil.

c. Persamaan Kecepatan dari Percepatan Fungsi Waktu