Gabrielle Sobel, Andrea Gingrich, Morgan McCann, & Marlene Woodings

 Step 1: Torque ◦ Created from force of hand and radius of ruler  Step 2: Conservation of Translational Energy ◦ Ball bearing rolls down pipe  Step 3: Projectile Motion ◦ Ball bearing is shot into funnel  Step 4: Collision ◦ Car and ball collide  Step 5: Mousetrap ◦ Snaps and pulls cover sheet to display banner

 Torque was found by using  The Conservation of Translational Energy (assumed frictionless transition) was found with,,  Projectile/Freefall Motion was found using Conservation of Kinetic and Gravitational Energy equations:,,  Conservation of Momentum was found by solving simultaneous equations:,,

 Trouble machining because of small pieces ◦ Unable to use clamps  Ball bearing placement in pipe ◦ Sometimes shot out of funnel ◦ Solved by moving ball further down pipe  Balancing pipe on pedestal ◦ Used tension in rubber bands to allow pipe to pivot while secure  Excess friction between car and wood ◦ Solved by placing scotch tape on wood

 Small design is more cost efficient  Device is compact and allows less room for error in calculations  Importance in communicating with peers