Vehicle Definition and 396 Threads

Homework Statement Hey, I was wondering what the proper section to post this in, and if it is okay to post it: I have to do a project that goes something of this sort: Basically build a vehicle no more than an empty mass of of 50 +/- 5 grams, and drop it from a point of approximately...

I am not too good at physics so I thought I would post here to find an answer to a question. I was recently involved in an automobile accident and was wondering if there was a formula to calculate how fast the other car was traveling at the time of impact. The details are as follows: Vehicle 1...

This picture is on the cover of this PATENT That refers to this ELECTROMAGNETIC PROPULSION Is any of this considered possible?

Homework Statement Under the influence of gravity g, a vehicle with mass m and initial velocity v0, travels a distance d1 to the bottom of a frictionless ramp ("a" degrees above horizontal). It then begins to travel up a ramp ("b" degrees above horizontal) with friction coefficient u. What...

I do not understand vehicle deceleration. The Attempt at a Solution d = µg 6.687 = .7 * 9.81 d = 6.687 m/s My question is...is it always figured out this way when dealing with vehicles.

could someone let me know the problems being faced while using disc brakes in any sort of vehicles?

Homework Statement In the movie "Jurassic Park 2", a jeep is struggling to pull a trailer back up from over a cliff. The jeep is connected to the trailer by a cable. The jeep in on level ground and the trailer hangs from the cable over the of the cliff. The jeep has a mass of 850 kg and pulls...

Hi, A vehicle land on a mountain of 4400ft.The Engine delivers 400hp to the wheels and careful streamlining has resulted in a drag coefficient of 0.5,based on a 20ft^2 frontal area.Compute the maximum ground speed of the car in i)still air and ii)with a 20mph head wind for part i)I have...

I think I have devised a formula to depict the correlation between engine speed and tire speed. Can anyone confirm or correct this? [ 1 mile / ( diameter of rim + profile thickness of tire ) * pi ] * ( x / 60 ) * ( gear ratio ) * ( final gear ) I used this in a function to graph the 5...

Hi All, I know this type of question has been asked many times but I need help to clarify for myself if I'm doing the right thing. So here goes... I am trying to simulate/understand the forces on a vehicle as it is traveling on a road. In particular as it is traveling up hills. So if I...

Homework Statement Im hopeless at interperating this, so ill just quote it: "The masses of the vehicles involved in the collision have significant influence on injury occurence. Suppose a large car of 2000kg and a small car of 1000kg hit head-on when both are traveling at 60km/h. The mass...

i need a formula for caculating linear speed of a vehicle. the question is wheel diameter 1.075 metres what is the linear speed of the vehicle when the wheel is rotating at 300 rev/min? thanks dan

Hi, i really hope someone can help me with this... what type of battery that is suitable for an electric vehicle(slow walking speed,electric wheel barow)? is it a deep cycle marine? I have a problem on how to choose the correct battery. i have choose a motor which can produce a max...

I hope someone could verify/help/alter/add on my design calculation of an electric vehicle (in my case is a powered wheel barrow,3wheel, 2front wheel,1 back wheel castor, dc electric motor powered 2 front wheel). The specifications are: Speed : 2m/s maximum Weight : 150 max kg Gearbox...

Design a vehicle that is powered only by a block of brick as the source of energy. The vehicle must travel 40 feet and stop on the dime after 40 feet (in other words travel total of 40 feet of distance). Design a pulley system involving a brick falling from a height (stored potential...

i need some help. i am supposed to design a vehicle that is powered only by one standard rubber band to transport an egg to the greatest possible horizontal displacement without breaking the egg. the vehicle can't have any rotating parts. must be constructed from basic parts (ie not...

Ke/pe Vehicle Help! we have to construct a vehicle for physics class that can travel the greatest distance possible. the energy must be stored "in" the vehicle as potential energy, and must have a 'rolling' aspect. we cannot use any chemical reactions or slingshot methods. it must travel...

Students! Draw a free-body diagram! :biggrin: http://www.liveleak.com/view?i=0ac0ad98af

I was nostalgic of the 80's and the cold war and I came up with this while surfing the web: http://en.wikipedia.org/wiki/Buran_program The Buran's program. It's incredible how much bad luck did they have. Eventually an hangar collapsed down and killed 8 workers and one of the built...

Well for my project in 6th sem, I'm planning to make a zero radius turn vehicle. What i understand by a zero radius turning vehicle is that it should keep the centre of mass at a fixed position and then rotate so that it moves 180 degrees. That is the maximum movement i should be able to show i...

I read an article in Popular Science about a ship called the CXV (Crew Transfer Vehicle).:confused: It is made by a company called t/Space. I was wondering if anyone knew anything about it. Any help is welcome.

I want to calculate the roll of a car going around a turn that is bank 24 degrees at a velocity of 160mph and a track width of 50 inches. TO be honest I am not sure where to start with the data I am given. It would seem to be a simple dynamics problem

Is it possible for a wheels forward velocity to increase when separated from a moving vehicle? If so please describe what makes this possible?

A real world vehicle, for land sea and air, no seriously could anyone do it? it would have to be user friendly, not outrageously expensive to run, carry at least 2 people and be practical.

Any enviromentalists do not look . So do you want a fast vehicle? i am trying to get a classic 1960 motorbike to go faster, i know it will never reach current motorbike standards, but it is the challenge, with some nostalgia ,that drives me, any engine gurus out there? if so your advice...

This is a real life situation, no homework associated. I am a mechanical engineer by degree, but have not actively worked in the field for over 20 years. However, I remember enough to be dangerous. I am looking for some high level, back of the envelope analysis. My wife was involved in an...

Spherical Vehicle Design by Michael W. Reed I have been thinking this idea over for a few months now, and I thought that it was time to ask for help. My inspiration for this idea came from trying to think of the most all-terrain vehicle possible. Once I realized a sphere would...

i have to build a vehicle "powered soely by gravitational potential energy that will travel at least a linewar distance of 5 meters under its own power. no elastic potential energy (such as a mousetrap) allowed" i was wondering if anyone out there had any idea on where to start or knew of a...

###force required to move stationary vehicle??### I am undergoing a product development as part of my full time business. I have forgotten a lot of the Physics I learned back in my school days and have been having trouble getting help with this issue, so I hope someone here can help. The...

O.k., so I'm a nerd. I like occationally checking out the U.S. patent site for nifty new ideas, which, I'll admit, is a bit like looking through the dictionary for words I'm not familiar with (another of my less than sexy habits), but THIS time I found something you don't see everyday. It's a...

Yeah, they'll have those right after they have satellites that can scratch your ass with a laser beam from space. Cheers...

How We'll Get Back to the Moon - http://www.nasa.gov/missions/solarsystem/cev.html However - NASA Estimates Moon Rocket Will Cost $104B http://news.yahoo.com/s/ap/20050919/ap_on_sc/moon_rocket By MARCIA DUNN, AP Aerospace Writer On the other hand, NASA has Michoud (La), Stennis (MS)...

Recently while traveling on a bus down a fairly steep descent, I became very aware of the regular hissing of, what I'm assuming were, the brakes - it would come at fairly regular intervals, a voluble burst of hiss, I think I might've been more aware of it because of where I was sitting on the...

I need to do some homework for court. It has been more than 30 years since I was in a physics class. I was the middle car in a three-car crash at a stop light - traffice started to move after the light turned green, then all of a sudden someone in the line in front hit their breaks. The...

Ok here is my question. Take a person riding a bike. If you can calculate their momentum by knowing their total weight and speed, how could you calculate the DISTANCE they will roll if they stop pedalling and apply no force. Assume that there is absolutely no wind at the time. And add in a grade...

Describe the energy changes involved when the vehicle is accelerating along the horizontal road. I don't know what are the energy changes during the process. Thanks.

i do not know if the theory behind this will work, but seems plausable now as far as i know, we have not attained the speed of light in any man made vehicle, however, 1/4 the speed of light seems a much more plausable situation. in this experiment, the set up looks somthing like this...

hello, i need to calculate acceleration of a vehicle. I have power (70 bhp), Tractive force (498N). Can someone help me please. I know i should use dv/dt but i can't remember how to do differential equations. Also I need the formula to include downforce as I am designing a rear wing. does...

A stunt vehical leaves and incline with a speed of 35 m/s at a height of 52-m above level ground. Air reistance is negligible. Find the vehicals time of flight? Well i found the x and y components of the vehicals velocity. And i know to use d = Vit + 1/2at² giving me: -52 = 16.4t +...

I'm looking into implementing some parts of drive by wire on an SUV and need assistance determing the load requirement for steering effort. Braking force is widely published as roughly 150 lbs of pressure but I am unable to find a similar estimate of force needed to turn a steering wheel. I'm...

What would be the state of a universe that contains only antimatter? Is it in a state of contraction or expansion similar to ours? As what Feynman diagram shows antiparticles travel backward in time, so if we can transform ordinary matter into antimatter by changing the protons to...

Presently, and still in use, my '84 s-10 pick up with 261,000+ miles. what about you or someone you know?

A Rubber Band?? OK...i need your help people... i have to construct a vehical that can transport a 1 Kg weight over 10 meters using any materials i please...here's the catch: Its only source of power can be a size-10 rubber band! It can have no other source of power and it cannot be launched...

Here is the question: Q. A highway curve that has a radius of curvature of 100m is banked at an angle of 15 degree. a) Determine the vehicle speed for which this curve is appropriate if there is no friction between the road and the tires of the vehicle. On a dry day when friction is...

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Ok, awfully long subject, but its an attention getter. Anyhow, my friends and I have been wanting to build small, 1 - 2 seater transport vehicles. I've got some basics on my ideas, hoping to get as light of a vehicle as possible, while meeting modern safety and emmission standards. So for...