Dinamika Rotasi SMADA JAYA 23
Quiz
•
Physics
•
11th Grade
•
Medium
SMADA JAYA23
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40 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Sebuah silinder bermassa 5 kg dengan jari-jari 50 cm berada dalam celah lantai miring seperti ditunjukkan gambar. Sudut kemiringan salah satu sisi lantai adalah θ (tan θ = ¾). Jika silinder ditarik dengan gaya horizontal F = 90 N dan momen inersia relatif terhadap titik A adalah 2,0 kgm² , percepatan sudut sesaat silinder relatif terhadap titik A adalah....
3,0 rad/s²
3,5 rad/s²
4,0 rad/s²
4,5 rad/s²
5,0 rad/s²
2.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Dua bola masing masing massanya m₁ = 2 kg dan m₂ = 3 kg di hubungkan dengan batang ringan tak bermassa seperti pada gambar. Jika sistem bola diputar pada sumbu di titik a maka besar momen inersia sistem bola adalah….
0,24 kg.m²
0,27 kg.m²
0,30 kg.m²
0,31 kg.m²
0,35 kg.m²
3.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Batang homogen bermassa m, dalam kondisi setimbang sepeti pada gambar. Dengan percepatan gravitasi g, besar torsi yang dialami tiang penumpu terhadap titik tancapnya, A adalah....
4 mgh
2 mgh
mgh
mgh/2
mgh/4
4.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Gaya F₁ , F₂ , F₃ bekerja pada batang ABCD seperti pada gambar! Jika massa batang diabaikan, maka nilai momen gaya terhadap titik A adalah....
15 N.m
18 N.m
35 N.m
53 N.m
68 N.m
5.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Sistem katrol sepeti pada gambar, katrol tanpa silinder pejal homogen yang dapat berotasi tanpa gesekan terhadap sumbunya yang tetap. Massa beban m1 = m, massa katrol M = 2m, massa beban m2 = 3 m dan diameter katrol d. Bila percepatan gravitasi g dan sistem bergerak tanpa pengaruh luar, percepatan sudut rotasi katrol sebesar....
2g/5d
3g/5d
4g/5d
6g/5d
g/d
6.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Sebuah katrol dari sebuah pejal dengan tali yang dililitkan pada sisi luarnya ditampilkan seperti gambar. Gesekan katrol diabaikan. Jika momen inersia katrol I = β dan tali ditarik Dengan gaya tetap F maka nilai F setara dengan....
F = α. Β.R
F = α. Β².R
F = α. (Β.R)ˉ¹
F = α. Β.(R)ˉ¹
F = (α. Β)ˉ¹ .R
7.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Balok m₁ = 3 kg dan balok m₂ = 4 kg dihubungkan dengan tali melalui sebuah katrol (momen inersia katrol I = MR² ) Seperti pada gambar. Massa katrol = 2 kg, jari – jari katrol R = 10 cm, dan percepatan gravitasi g = 10 m/s² . Kecepatan balok setelah bergerak sejauh 40 cm adalah....
1 m/s
√2 m/s
2 m/s
√6 m/s
4 m/s
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