Launcher Definition and 117 Threads

I am trying to create a plinko launcher for my plinko board (as you would see in the price is right). I created a pinball type spring launcher and used a bell crank in order to change the horizontal force into a vertical force. I am using a 3.5in spring with a spring constant of 1.09lbs/in. I...

The question to the lab is How can the spring constant and muzzle velocity for a toy ball launcher be determined through physical measurements and energy conservation considerations? My lab group and I took our pastic ball launchers(pretty much toy guns) and shot them straight up and measured...

I need to build a completely horizontal projectile launcher for my physics class. I started experimenting with a Gauss rifle, but the horizontal velocity was hardly even 1m/s, even with strong magnets. I'm looking into a few other propulsion mechanisms, such as pressurized air (like a spud gun)...

Homework Statement As a participant in a robotic competition, you must launch a potato from a moving cart and strike a target. The potato must reach the apex of flight just as it travels over a screen, then it must pass through the center of an opening in a wall. The cart moves at a steady...

So, I made a marshmallow launcher that has a small tube within a larger tube that when a bungee is released it gets launched into the larger tube, smacking the marshmallow and sending it flying. Woo! My problem is that I want to use the equations for projectile motion, I know the angles I'm...

Do you guys think it is possible to build a spring launcher that launches a small projectile like a tennis ball or baseball like 600 feet...If it is, what kind of spring would one use. Or maybe a different launcher approach would be better. LET Me Know

Homework Statement A game uses a spring launcher to shoot a puck with mass of 0.5kg along a frictionless track as shown in the diagram. The spring has a k value of 600 N/m. By how much does the spring need to be compressed to launch the puck and have it go around the inside of the loop...

Homework Statement A spring is fired from a launcher angled Θ degrees from the floor. The spring has force constant k and mass M. The target is Δd metres away from the launcher and the target is elevated Δy metres. When the spring is launched, it travels at initial speed v0 towards the...

i'm trying to build a launcher that automatically launches after a period of time. it has to launch 4m and launches a projectile weighing no more than 50g. what kind of mechanisms would i need to use? thanks!

Homework Statement So pretty much, the goal of the project is to create a car which has a launcher on it (elastic powered). The car starts at one zone, rolls 4m forward (for maximum marks, it has to hit 4m on the mark), then fires at the perpendicular angle from its initial direction at a...

Advice on my Tennis Ball Launcher...That Shoots 90 Meters It can't rely on anything explosive, combustion, or electricity (anything dangerous) and has to be fired from a distance of 2 meters. 2 parts: Distance- It has to shoot 90 or more meters Accuracy- shoot the tennis ball...

I have designed a spring launcher for my class and it works really well using the range equation...x=sqrt(Rmg/KSin2(Theta)). So I have made a contraption that displaces the spring by x metres. I even have re-arranged and have it working using angles of launch and determining the range (R)...

Homework Statement Make a toothpick move or shoot 12 inches using a 6 Volt lantern battery, magnets, wire, (& anything else necessary) Homework Equations The Attempt at a Solution Made a "beakman's motor" and tried to insert a toothpick in the wire, so it can spin and then launch, but...

Homework Statement A projecticle launcher is shown in the attachment. A large current moves in a closed loop composed of fixed rails, a power supply, and a very light, almost frictionless bar touching the rails. A magnetic field is perpendicular to the plane of the circuit. If the bar has a...

Hi, for a project at college i am building an ice hockey puck launcher for the development and training of ice hockey goaltenders. I am planning on using two wheels rotating in opposite directions to launch the puck. The pucks will be fed in by a pneumatic cylinder that is powered by a...

I want to launch an eraser through the air and it should land inside a garbage can 10 meters away from the launch site and it will be laying at a 30 degree angle to the ground. i need to use a combustion chamber made out of a container (max 65 mL), i need to use fuel, a sparker , an eraser...

okay i have a question on determining the vertical velocity of a ball that leaves it launcher i'm not sure if it is the initial vertical velocity on the lst part of trajectory second question, how do you determine the kinetic energy of the ball at launcher(based on total initial energy v) and...

“President Barack Obama will ask Congress next year to fund a new heavy-lift launcher to take humans to the moon, asteroids, and the moons of Mars, ScienceInsider has learned. The president chose the new direction for the U.S. human space flight program Wednesday at a White House meeting with...

Homework Statement Find out the launch velocity from the launcher (the absolute starting point aka x=0) Angle (degrees) Height(cm) Average Distance Traveld(cm) 0 99.0 220.73 30 104.3 307.8 45 106.6 380.4 60 108.5 319.2...

Hi, I am an Italian student of aerospace engineering. I'm writing a thesis on maglifter as the first stage for a space launcher, but I can't find any recent information. Do you know any reliable source for my research? But more importantly, do you know if the project is still under...

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...

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...

My teacher assigned a project in which we have to build a device that will launch a water balloon at least 200 yards, the only restriction being that the use of compressed air is prohibited. I have already thought of several designs using a slingshot or catapult. It would be wonderful to be...

The equation widely used to calculate the force on a projectile in an electromagnetic launcher, more specifically a railgun, is: F = 0.5 * L' * I^2 where: --> F is the force in Newtons --> L-prime is the inductance gradient of the rails in henries/meter (H/m) --> and I is the current...

Homework Statement So I made a spring launcher that will fire marbles. I need to derive a general formula for finding range for any given angle and x value.Homework Equations 1) v22=v12+2ad 2) Ek=Es 3) 1/2mv2=1/2kx2 4) d=v*t This projectile was shot from 1.1m off of the ground. The Attempt at...

Homework Statement Find the average spring constant (k) of a water-balloon launcher, and use that to find the distance to pull back the launcher and launch a balloon of a certain weight a certain distance. I'm at the "finding k" part. Diagram attached. Known: Weight of balloon (Fw, N), mass...

Hello again, well after finishing the solenoid (https://www.physicsforums.com/showthread.php?t=309671), I'm stuck with a problem again. before that, let me give you a little background. Well actually I have a project on making a magnetic launcher. This device should be able to launch a...

hello, i was wondering what people here would think the best design type for a potato launcher would be. I looked at catapults, ones that use compressed gas, and combustion. firstly, which would be the easiest to make?

http://party.windycitynovelties.com/search?w=bls042dz2&asug=&submit.x=0&submit.y=0" is the hacky sack, it weighs 50-60g and is about 2" in diameter The launcher has to fit inside a 15" cube when set, weigh less than 15 lbs. and has to use purely mechanical power, compressed air not included...

Ok, so here I go. Problem Objective: It is simply to create a device to accurately toss a projectile. Constraints: -Must fire a tennis ball anywhere between a 5' to 20' operating range. -Must fitwithin a 2 by 2 footprint(basically when broken down into parts the...

I am building a projectile launcher for school and was wondering what is the best way to go about it. I was thinking about a trebuchet but am unsure about how accurate it will be. The launcher does not need to be very powerful, it only needs to launch a 250g mass roughly 1.5m, but has to be very...

Hi all, I'm going to design a ball launcher machine, but I've no idea where to start from.. this is the ball type: http://en.wikipedia.org/wiki/Sepak_Takraw how do i judge the power and rpm required for the motor?? as i know, there is a initial velocity required for the roller, so the...

Homework Statement Given hb (m) = 1 (Height of point B) theta = 30 (degrees - launch angle) k (N/m)= 60 (assume the graph is linear) m (g) = 250 (balloon mass) 1. If Xs (cm) = 150 (pull distance) a) Find the estimated Vb and the landing X (ideal case where Ein =Eout) b) The balloon land...

It is a Project: I have constructed a waterballon launcher with a group. It looks similar to this, http://www.engr.trinity.edu/images/balloonlaunchers/3balloonlaunch2002.jpg We are to launch a waterballon an unknown distance between 10-50 meters. We need to determine horizontal range the...

Homework Statement Hooke's Law Experiment: what is force and extension table of values?, finding the spring constant and calculating one initial launch velocity of my spring launcher? Homework Equations Fx=k(x) The Attempt at a Solution researching on google...need someone to...

Homework Statement hi this is my first time posting here but I'm been on the forum a lot just looking for help on this assignment I have I need to make a spring laucher that's able to change angles and distance heres an example of my lancher A spring is launched to a box The target is...

I need some ideas on how to build a launcher which will fire a spring (about the size of a pinky) over a distance of about 4 metres. The launcher has to be capable of firing a spring from any angle above the horizontal (0 to 90 degrees) and the target will be at ground level. I think a...

A student designs a gas powered launcher that consists of a pressure tank, a valve and a barrel. When the valve is turned the gas, in this case air, expands propelling whatever is in the barrel. The pressure tank and barrel have the same dimensions while the valve connecting the two has a...

[SOLVED] Spring launcher Homework Statement A spring is launched to hit a target. The target is at a certain distance and height. How do you find the velocity needed to hit the target? The height and distance of the target, and the angle of the launcher are given. Homework Equations...

**URGENT** Help on a PROJECTILE LAUNCHER Project Purpose of this so-called project: To use the air inside a two liter plastic bottle to launch a projectile as far as possible. Side note: This is NOT the Bottle Rocket Launcher! The only requirements for this project is that I must use a...

Homework Statement i need to built a launcher to shoot anything(no sharp object, bb bullets, or must be bigger then 5mm) out for about 55 Meters... the only force i can use to launch the "object" is airs that are inside a 2Liter coke bottle... every other material is ok.. PS: I am not...

A bit early for a culminating.. but here we are at the much overused "Build an Egg Launcher" project. The idea is to use surgical tubing (2ft) to launch an egg the farthest possible (the egg can crack, it doesn't matter). The only force allowed in this is the elastic force of the surgical tubing...

I recently did an expirement for my physics class in which we used a projectile launcher to fire a ball across a distance, where it would hit a piece of carbon paper. I've been asked to solve for the initial velocity, (Vi), and the only known information is: Vertical Acceleration = -9.81...

Alright, so we were just assigned our ISUs for grade 12 physics, and I'm a bit confused as to what is the best design for my project. We are to build a 'device' that launches an egg over a 1 metre tall 'fence' that is 2 metres away. The egg must then go through an 'open window' that is...

im trying to build a ping-pong ball launcher and i can't figure out how many degrees to elevate it or how long to cut the tube. has anyone done this before and if u have help me! also if u have any ideas that woud be extremely helpful as well. if u help me with mine ill help u with urs.

Heh, I liked this one -- thought it was cute: http://www.sciencenetlinks.com/interactives/gravity.html

I've built a horizontal spring launcher, and i need to calculate the extension needed in the spring in order to launch a projectile horizontally to a given distance. The launcher consists of a striker connected to the spring... when the spring is pulled back and let go the strike moves...

Energy requirements for a relativity "launcher" I read about an interesting concept for space travel in the book "the Millennial Project: colonizing the galaxy in eight easy steps". Unfortunately, I forgot what exactly the author called it, and so have dubbed it a "relativity launcher". It was...

I need help ASAP because the teacher assigned it today and its due tomorrow... Homework Statement The ball launcher in a pinball machine has a spring that has a force constant of 1.20 N/cm. The surface on which the ball moves is inclined 10.0° with respect to the horizontal. If the spring...

For our physics class we have to make a tennis ball launcher and we are also responsible for doing calculations to predict the distance our launcher will be able to launch the tennis ball. I have done the calculations here and can be seen in this PDF file: http://imusion.net/backup/yahoo.pdf...