Ask Question
25 January, 04:17

A potter's wheel, with rotational inertia 49 kg·m2, is spinning freely at 40 rpm. The potter drops a lump of clay onto the wheel, where it sticks a distance 1.2 m from the rotational axis. If the subsequent angular speed of the wheel and clay is 32 rpm what is the mass of the clay?

+5
Answers (1)
  1. 25 January, 04:31
    0
    8.5 kg

    Explanation:

    Angular momentum is conserved.

    I₁ ω₁ = I₂ ω₂

    I ω₀ = (I + mr²) ω

    (49 kg m²) (40 rpm) = (49 kg m² + m (1.2 m) ²) (32 rpm)

    61.25 kg m² = 49 kg m² + (1.44 m²) m

    m = 8.5 kg

    The mass of the clay is 8.5 kg.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A potter's wheel, with rotational inertia 49 kg·m2, is spinning freely at 40 rpm. The potter drops a lump of clay onto the wheel, where it ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers