®
M o d e l N o . P S - 2 1 4 2
S u g g e s te d A c ti v i t i e s
5
Force Distribution (With Two Platforms)
Place two 2-Axis Force Platforms on the floor, and place two parallel boards (as pic-
tured) to act as a bridge. Press the tare buttons. Place a heavy ball on the boards. Set
up a motion sensor (PS-2103) to measure the position of the ball. While collecting
data, give the ball a push so that it rolls along the boards.
What is the relationship between the position of the ball and the force measured by
each platform? How does the sum of the forces change?
Calculate the changing torques applied to the boards by each platform and the ball as
the ball rolls. How does the sum of the torques change?
