AP Extra Credit Opportunities

Put on separate paper from homework and mark clearly: extra credit. Due by Monday

For projectile motion

1. Prove that 45 deg is the angle giving the longest range if delta y is zero. A real proof not just 45 is in the middle. (10 pts)

2. Prove that range is the same for 30 and 60 deg if delta y y is zero ( 5 pts)

3. Find the equation for angle given delta x delta y and vi. Note the equation should yield two solutions some of the time and not solutions if delta y or delta x are too great for a given vi. Find means derive, not look it up!