Physical Pendula – 3A15.00

Sweet Spot – 3A15.50


  • A baseball bat or a metal pipe hangs from a pin that can slide along the horizontal support rods.
  • The forked end of the pivoting arrow straddles the pin.
  • Start with the arrow straight up. When the bat is struck above or below the sweet spot the arrow indicates the direction the end of the handle moves.
  • The arrow remains stationary only when the bat is struck at the marked sweet spot.

Location: Demo Room & Jacobs B122 – Shelf 286