A 43.0-kg child swings in a swing supported by two chains, each 2.92 m long. The tension in each chain at the lowest point is 346 N.
(a) Find the child's speed at the lowest point.
A small, spherical bead of mass 3.20 g is released from rest at t = 0 from a point under the surface of a viscous liquid. The terminal speed is observed to be vT = 1.92 cm/s.
(b) Find the time t at which the bead reaches 0.632vT.
(c) Find the value of the resistive force when the bead reaches terminal speed.