1-In which portions of this lab is mechanical energy not conserved? When is line

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1-In which portions of this lab is mechanical energy not conserved? When is linear momentum not conserved? What is responsible for these quantities not being conserved if they aren't? You may consider the idealized cases where we neglect air resistance.

2- Which of the experimental methods, part A B or C do you think is the most accurate determination of the launch velocity? Justify your answer.

3- If the ball launcher was placed on the frictionless surface and then fired with the ball going into the catcher, would the ballistic pendulum rise higher, not as high, or the same distance? Explain.

here is the lab discreption:

http://postimg.org/gallery/5jfwxbuw/

In which portions of this lab is mechanical energy not conserved? When is linear momentum not conserved? What is responsible for these quantities not being conserved if they aren't? You may consider the idealized cases where we neglect air resistance. Which of the experimental methods, part A B or C do you think is the most accurate determination of the launch velocity? Justify your answer. If the ball launcher was placed on the frictionless surface and then fired with the ball going into the catcher, would the ballistic pendulum rise higher, not as high, or the same distance? Explain. here is the lab discreption: http://postimg.org/gallery/5jfwxbuw/

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