Ask Question
10 April, 20:23

A bar on a hinge starts from rest and rotates with an angular acceleration α = 15+4t, where α is in rad/s2 and t is in seconds. Determine the angle in degrees through which the bar turns in the first 2.00 min.

+2
Answers (1)
  1. 10 April, 20:45
    0
    201,000°

    Explanation:

    α = 15 + 4t

    ω = 15t + 2t²

    θ = 7.5t² + ⅔ t³

    At t = 120 s:

    θ = 7.5 (120) ² + ⅔ (120) ³

    θ = 1,260,000 radians

    θ ≈ 201,000°
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A bar on a hinge starts from rest and rotates with an angular acceleration α = 15+4t, where α is in rad/s2 and t is in seconds. Determine ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers