Nevermind, I've got it. I wasn't confusing the tension and centripetal acceleration. I just forgot that you have to add and subtract in order to isolate tension
I'm not sure what you mean by a second pipe inside of the first one. We also would prefer the spring or bungee cord to be inside the device. I think remote control would be a battery operated device, like the ones you see with remote control cars. We will probably use a long string and pull pin...
My partner and I are making a tennis ball launcher for a physics project. We are going to use either a bungee cord or spring inside of pvc pipe. Do you have any ideas for how to set up the device on the inside? Also, we were going to use a camera tripod as a stand, but are skeptical on if it...
Well, it's one of those online homework things...when I added the tension for the 3 o'clock and the force of gravity, it said my answer was correct. The same for subtracting...I drew a picture and gravity was pointing down, as always, so why would you add them? It doesn't make any sense to me...
Nevermind, I got the answers. For the 6 o'clock, you add Fg and the given tension. For the 12 o'clock, you subtract the force of gravity from the tension. Could anyone explain why this is? Because I thought that net force was equal to tension which is equal to centripetal force. If centripetal...
Homework Statement
A 0.35 kg ball on a string is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the tension is 18 N. What is the tension in the string at 12 o'clock and 6 o'clock position?
Homework Equations
centripetal force= net...
I don't know about you, but I'm probably building a trebuchet. One, because they are supposedly very accurate. Two, I can't find anything else on the Internet. Three, the air launcher would take too much time to set up in between launches. Four, I don't think my teacher would appreciate it if I...
I need to be able to adjust the angle, however. The pneumatic device looks accurate, but I have to launch it from a distance. Also, I probably don't have enough time to pump air into it between launches.
I'm using a racquet ball. I don't know the mass of that. I might end up doing a trebuchet anyway since I have all the plans and materials drawn out. I don't really know what he meant by ineffective, though
Projectile Launcher Ideas?
I was originally going to make a trebuchet, but my teacher informed me that trebuchets are not very effective, though accurate if made right. I decided to make a spring loaded projectile launcher, yet I can't find any material lists or designs on the Internet. The...