Pertanyaan

Sebuah baling-baling kipas angin berputar dengan percepatan linear 8m/s^2 secara konstan. Jika diketahui diameter dari kipas angin tersebut adalah sekitar 50 cm, maka tentukan percepatan sudut yang dialami baling-baling tersebut! A 32rad/s^2 B 24rad/s^2 c 16rad/s^2 D 12rad/s^2 E. 6rad/s^2 A B C D E

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Neeta elit · Tutor selama 8 tahun

Jawaban

Here's how to solve this problem:**1. Understand the relationship between linear and angular acceleration:**Linear acceleration (a) and angular acceleration (α) are related through the radius (r) of the rotating object:a = α * r**2. Convert units:*** The linear acceleration is given as 8 m/s².* The diameter of the fan is 50 cm, so the radius (r) is 25 cm = 0.25 m. It's crucial to use consistent units (meters in this case).**3. Solve for angular acceleration:**Rearrange the formula to solve for α:α = a / rSubstitute the values:α = (8 m/s²) / (0.25 m) = 32 rad/s²**Therefore, the correct answer is A: 32 rad/s²**