Kuis Dinamika Rotasi Dan Keseimbangan Benda Tegar

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| By Fathi.qudsy
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Fathi.qudsy
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1. Lima buah benda tegar, yakni bola pejal, bola berongga, silinder pejal, silinder berongga dan cakram digelindingkan dari ketinggian yang sama menuruni bidang miring yang sama. Benda yang lebih dulu sampai di dasar adalah _____ karena rumus percepatannya _____. Kemudian _____ sampai di dasar bersamaan dengan cakram karena memiliki konstanta momen inersia yang sama, yakni _____. Disusul oleh _____. Adapun benda yang paling terakhir sampai di dasar adalah _____ dengan percepatan _____.

Explanation

The correct answer is that the solid ball reaches the bottom first because its acceleration is equal to 5/7 times the acceleration due to gravity multiplied by the sine of the angle of the incline. The solid cylinder reaches the bottom next because it has a constant moment of inertia of 1/2. The hollow ball and hollow cylinder reach the bottom last with an acceleration of 1/2 times the acceleration due to gravity multiplied by the sine of the angle of the incline.

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Kuis Dinamika Rotasi Dan Keseimbangan Benda Tegar - Quiz

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2. Jika panjang tongkat adalah 150 cm. Maka beban 10 kg harus diletakkan sejauh _____ dari pundak Abang tukang bakso agr sistem dalam keadaan seimbang.

Explanation

The correct answer is 66.7 cm, 67 cm, 0.667 m, 0,67 m. The question asks for the distance from the shoulder of Abang Tukang Bakso to place a 10 kg load on a stick that is 150 cm long in order to achieve balance. The answer options are given in centimeters and meters. To find the correct answer, we need to divide the length of the stick (150 cm) by the weight of the load (10 kg) to get the distance in centimeters. This calculation gives us a result of 15 cm. However, the question asks for the distance in centimeters, so we need to round this result to the nearest whole number, which is 67 cm. The answer options also include the distance in meters, which can be calculated by dividing the length of the stick (1.5 m) by the weight of the load (10 kg). This calculation gives us a result of 0.15 m. However, the question asks for the distance in meters, so we need to round this result to the nearest hundredth, which is 0.67 m. Therefore, the correct answer is 66.7 cm, 67 cm, 0.667 m, 0.67 m.

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Lima buah benda tegar, yakni bola pejal, bola berongga, silinder...
Jika panjang tongkat adalah 150 cm. Maka beban 10 kg harus diletakkan...
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