Tuesday, December 13, 2011

Analysis Questions

1. Newton's first law of motion, the law of inertia, is one of the reasons that our balloon car and all other objects move. Newton's first law is the reason that an amount of force is required to make the balloon car accelerate.  It started off slowly, but continued to accelerate until it hit the wall.

2. Newton's second law was also involved in this project. To optimize Newton's second law to our advantage, we had to find the best weight for the balloon car so that it would accelerate at the fastest rate. The more the car weighs, the slower it accelerates. We tried to keep the weight down.  This would be especially important at the beginning of a trial, because if it did not accelerate enough at the beginning it would no go very far.

3. Newton's third law of motion is also applicable to this project. Because every action has an equal and opposite reaction,  the air from the balloon got forcefully pushed out of the balloon and the reaction force pushed the car forward, overcoming friction to accelerate it.  This relates to the first law of motion because the force is needed to overcome the car's inertia.

2 comments:

  1. 1. What is Newton's first law? What caused the car to move? What caused the car to stop? Your answer is extremely vague.
    2. State Newton's 2nd law. How did you try to keep the weight down? Explain WHY lower weight means faster acceleration.
    3. What is the reaction force? (Air pushing back on the balloon.) State Newton's 3rd law. What is object 1? Object 2? See the hints and the question in the handout for more information on what to include.

    Your responses to the last two questions about momentum and friction are missing.

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  2. sorry i will fix it if its not too late

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