Analysis Questions 1. Using the data from steps # and # and the projectile equations, calculate the horizontal velocity of the ball just before it leaves the table. 2 3

2. Using the data from step # and the velocity calculated in the previous question, compare the of the ball at the top of the incline, with the of the ball just before it leaves the table (you do not need to know the mass, just let it equal ). Is the mechanical energy being conserved?

Discuss. 4 gravitational potential energy gravitational potential energy kinetic energy kinetic energy m

3. Using the data from steps # and # , determine the horizontal velocity of the target ball, just before it left the table. Using the value of velocity you just calculated, compare total momentum just before the collision with the total momentum after the collision (again let the masses of the balls be ). 3 5 m

4. Discuss the laws of mechanical energy conservation and momentum