Ask Question
4 January, 15:16

Find the moment of inertia about each of the following axes for a rod that is 0.360 {cm} in diameter and 1.70 {m} long, with a mass of 5.00*10-2 {kg}.1. About an axis perpendicular to the rod and passing through its center. (in I=kg*m^2) 2. About an axis perpendicular to the rod and passing through one end. 3. About an axis along the length of the rod.

+1
Answers (1)
  1. 4 January, 18:20
    0
    The complete question is;

    Find the moment of inertia about each of the following axes for a rod that is 0.36 cm in diameter and 1.70m long, with a mass of 5.00 * 10 ^ (-2) kg.

    A) About an axis perpendicular to the rod and passing through its center in kg. m²

    B) About an axis perpendicular to the rod and passing through one end in kg. m²

    C) About an axis along the length of the rod in kg. m²

    Answer:

    A) I = 0.012 kg. m²

    B) I = 0.048 kg. m²

    C) I = 8.1 * 10^ (-8) kg. m²

    Explanation:

    We are given;

    Diameter = 0.36 cm = 0.36 * 10^ (-2) m

    Length; L = 1.7m

    Mass; m = 5 * 10^ (-2) kg

    A) For an axis perpendicular to the rod and passing through its center, the formula for the moment of inertia is;

    I = mL²/12

    I = (5 * 10^ (-2) * 1.7²) / 12

    I = 0.012 kg. m²

    B) For an axis perpendicular to the rod and passing through one end, the formula for the moment of inertia is;

    I = mL²/3

    So,

    I = (5 * 10^ (-2) * 1.7²) / 3

    I = 0.048 kg. m²

    C) For an axis along the length of the rod, the formula for the moment of inertia is; I = mr²/2

    We have diameter = 0.36 * 10^ (-2) m, thus radius; r = (0.36 * 10^ (-2)) / 2 = 0.18 * 10^ (-2) m

    I = (5 * 10^ (-2) * (0.18 * 10^ (-2)) ^2) / 2

    I = 8.1 * 10^ (-8) kg. m²
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Find the moment of inertia about each of the following axes for a rod that is 0.360 {cm} in diameter and 1.70 {m} long, with a mass of ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers