Northwestern Physics Demos                                 Go back to Mechanics
DCS# 1D60.10NWU# M-105        3 A 1
title: Ball Launch Cart
aka: Howitzer & Tunnel

Description:
A ball launching device is attached to a Pasco cart.  Attached to the Pasco track is a small flag that interupts a photogate which fires a yellow ball vertically upward.  When properly set up, the ball will return to the firing device, even when moving at a constant speed.
  A drop rod can be attached to show that the ball will fall into the cart.
  A "tunnel" can be constructed of books and/or boxes so that the ball flies over the tunnel and lands back in the cart.

Questions:
  Where will the ball land when the cart is rolling down an incline?
image of diskball positiontrigger photogate