How to make Newton's Cradle the ball at the end swings up to higher level and bigger speed?
give suggestions from the following aspects :
the arrangement of the ball
the type of material used to make the balls
the number of string used to hang the balls
the position of the ball to start the oscillation.



1) Close together. Momentum can be transferred easily
2) Strong to withstand the momentum transferred
3) Each ball has two strings to avoid the ball from snapping off easily.
4)The end of all balls. a larger momentum can be created.