Werpapparaat voor ballistisch onderzoek, PHYWE Function and Applications For demonstrating projectile motion and for quantitative investigation of the laws of projection, in particular for determining the range of a projectile as a function of the projectile angle and the initial velocity of the projectile. Benefits The catapult included in the extent of delivery can be used to: Achieve reproducible projectile ranges up to 3 m (scatter of the projectile ranges approx. 1%) Set a continuously variable projection angle between 0° and 90°- to select three projection speeds Use two balls with different masses but with the same diameter Equipment and Technical Data With catapult and fixed storage for two balls d = 19 mm (wooden ball with iron core and steel ball 02502.01), Dimensions 60 cm×38 cm