I have a packet that I really need to turn in soon. It's based on a trip to an amusement park, but I couldn't go, so I need some help. If someone can help me out with any of these questions tonight or tomorrow morning before 7:00 AM Pacfic, that would be great.(adsbygoogle = window.adsbygoogle || []).push({});

Also, some of the questions are conceptual, so I may deviate from the template for just those ones.

Question #1

1. How do you solve for speed using conservation of mechanical energy? The only variable given is the vertical distance - 52 meters.

2. Relevant equations:That's what I want to know! Just knowing what to use to solve this problem would help a lot.

3. The attempt at a solution:Don't even know where to start, I'm afraid. I'm not looking for an answer, just how to set the problem up.

Question #2

1. How do you calculate the length of a pendulum when given time (22 s) and number of cycles (3)?

2. Relevant equations:None given.

3. The attempt at a solution:I calculated frequency (at .14 hz) and period (at 7.3 s). I don't know if either of those are right, but either way, I don't know what to do next to find length.

Conceptual Questions:

-"Where on a roller coaster may you feel like you're being lifted out of your seat? Why?" I haven't ridden a roller coaster in a long time, so I just can't picture this sensation. Any ideas?

-Does free fall have a constant value? I have to compare the speed of a descent to the speed of free fall, but I don't know the latter. For some reason, I think it might be a constant value (9.6 sounds familiar). Is that correct?

-"How do bumper cars get their energy?" I put that it has something to do with the metal floor and the antenna, but I have a feeling that isn't right.

-Speaking of bumper cars, when they collide, do they bounce back at the same speed as before or a reduced speed? I put that it was the same, but I want to check for verification.

EDIT: Of course, I don't expect any one person to help me with all of these. Any contribution at all would be great. Thank you. :)

Of the 40 problems we have, these are the only 6 I'm struggling with.

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# Homework Help: A few questions

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