# Try Out Online II (Fisika)

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| By Itdepartmen58jkt
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Itdepartmen58jkt
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Quizzes Created: 9 | Total Attempts: 7,792
Questions: 40 | Attempts: 446

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Pilihlah Jawaban yang paling tepat :

• 1.

• A.

5,47 mm

• B.

5,97 mm

• C.

6,97 mm

• D.

10,47 mm

• E.

10,97 mm

E. 10,97 mm
• 2.

### Seseorang dengan posisi awal di A , berjalan ke timur sejauh 100 m, kemudian berbelok ke utara sejauh 40 m, kemudian ke barat sejauh 40 m, dilanjutkan ke utara sejauh 40 m lagi hingga berhenti di B. Perpindahan yang dilakukan orang tersebut sebesar ....

• A.

100 m

• B.

120 m

• C.

180 m

• D.

200 m

• E.

220 m

A. 100 m
Explanation
The person starts at point A and walks 100 meters east. Then, they turn north and walk 40 meters. After that, they turn west and walk 40 meters. Finally, they continue north for another 40 meters until they reach point B. The total displacement of the person from point A to point B is 100 meters.

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• 3.

### Grafik (v – t) menginformasikan gerak sebuah mobil mulai dari diam, lalu bergerak hingga berhenti selama 8 sekon seperti pada gambar. Jarak yang ditempuh mobil antara t = 5 s sampai t = 8 s adalah ... .

• A.

60 m

• B.

50 m

• C.

35 m

• D.

20 m

• E.

15 m

B. 50 m
Explanation
The graph shows the motion of a car starting from rest, then moving and finally stopping for a total of 8 seconds. The distance traveled by the car between t = 5 s and t = 8 s can be determined by finding the area under the graph between those two time points. The area under the graph represents the distance traveled. In this case, the area under the graph between t = 5 s and t = 8 s is equal to 50 m. Therefore, the correct answer is 50 m.

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• 4.

### Tiga buah roda dihubungkan seperti tampak pada gambar. A dan B menyatu dan sepusat B dan C dihubungkan dengan ban. Jika RA = 4 cm, RB = 2 cm dan Rc = 10 cm, maka perbandingan kecepatan sudut roda B dan roda C adalah … .

• A.

1 : 5

• B.

2 : 1

• C.

2 : 5

• D.

5 : 1

• E.

5 : 2

D. 5 : 1
Explanation
The correct answer is 5:1. This can be determined by using the formula for angular velocity, which states that the angular velocity is equal to the linear velocity divided by the radius. In this case, the linear velocity of wheel B is equal to the linear velocity of wheel C, since they are connected by the same tire. However, the radius of wheel B is 2 cm, while the radius of wheel C is 10 cm. Therefore, the angular velocity of wheel B is 5 times greater than the angular velocity of wheel C, resulting in a 5:1 ratio.

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• 5.

• A.

15 m.s-1

• B.

30 m.s-1

• C.

45 m.s-1

• D.

60 m.s-1

• E.

120 m.s-1