Type III Projectile Type III Projectiles These projectiles

Type III Projectile

Type III Projectiles These projectiles are launched at an angle other than zero degrees (That’s a type ___) and they land at a different height than the launch height. Examples of Type III:

Solving Type III • • Make a triangle to get vix and viy Make X and Y charts If you solve for t in the Y direction, it takes two steps Impact velocity is found just like in Type I problems Velocity at the zenith is just like in Type II tup ≠ tdown final speed ≠ initial speed DO NOT USE DERIVED EQUATIONS YOU FIND IN THE TEXT!!!

Ex 1 • A football is kicked at 20. 0 m/s, at an angle of 50⁰ (above horizontal). What is the maximum range if the ball must clear a 3. 05 m high bar?

POD • An Olympic diver leaves the 10. 0 m tall platform going 3. 5 m/s at a 60° angle. Determine the divers velocity (that means magnitude AND direction) when they impact the water.

Type III Performance Assessment • Part I: Fire your marble vertically to determine the magnitude of its initial velocity. • Part II: Ask instructor for a launch angle. • Part III: Determine range if launcher is on lab table, and target box is on floor. • Part IV: Test prediction • Part V: Write a two part word problem that includes all your measurements. • Part VI: Show the neat solution to the two part word problem. • Note: Part V must precede part VI on your report!

Assignments • Quest! • Phet Simulation: – – Set up a type III Measure everything EXCEPT RANGE On back of WS, solve for range Position target and test • Lab (Tuesday) • Optional: Shoot the Monkey Gizmo on explorelearning - user name: physics_south -password: Einstein -Record your answers to the 5 assessment questions • PCR review Projectile Motion (in Vectors: Motion and Forces in Two Dimensions)