일반물리학 1 — Force and Motion-I: Problem 39

39 A bead of mass \(2.5 \times 10^{-4} \text{ kg}\) is suspended from a cord. A steady horizontal breeze pushes the bead so that the cord makes a constant angle of \(40^\circ\) with the vertical. Find (a) the tension in the cord and (b) the push magnitude.