and the weights are inserted in the holes in fact when balancing a keystick to achieve a static balance the position of the weight relative to the pivot point 1 is irrelevant as shown in fig2 the placement of 40 grams a distance of d from the pivot point 1 is equal to 20 grams at a distance of 2d or 10 grams at 4d the amount of torque generated by each is equal to 40d grams although positioning of weight relative to the pivot point is irrelevant for static balancing the placement is critical to the dynamic performance as will be appreciated from considering fig2 playing a note is a dynamic process when depressing a key the ivory end of the keystick moves from position p 1 to position p 2 the distance traveled is small in comparison to the radius from the pivot point therefore the movement can be treated as linear this distance of keystick travel is directly proportional to the distance along the keystick from the pivot point the work performed by depressing an individual key is equal to assuming a constant acceleration the relationship between velocity acceleration and position can be written as v 2 final v 2 start 2 a p final u2212 p start a v 2 final u2212 v 2 start 2.