Car Definition and 999 Threads

Homework Statement Hi, this isn't so much a specific question, but rather a project which I'm embarking on. As part of my coursework, I'm required to take up and work on a Physics project, and I've chosen a problem fro the 2011 IYPT. The problem statement goes like this: Build a model car...

Homework Statement Calculate the force of friction on a toy car as it rolls across a flat floor. Given: mass = 0.293kg time = 3.66 s displacement = 8.7Homework Equations Fnet = mass x acceleration displacement = [(velocity1 + velocity2)/2] time velocity2 = velocity1 + acceleration(time)The...

Hello Guys , I want to have my HUD displayed on my car's rear wind shield so that the driver just behind my car has an idea of my driving (Hypermilling) :cool: I have been looking for a possibility to do this but till now I only saw devices that projects the display on the front wind shield...

Homework Statement Car A with mass 1000 kg is accelerating at 1ms-2 at car B. Car B with mass 1000 kg is accelerating at 1ms-2 at car A. What is the force on car B at the collision? Homework Equations F = ma Newton's third law The Attempt at a Solution Car A force: F = ma F = 1000 x 1 F =...

I've been looking up how weight transfers between car tires in various forms of acceleration, and I've found some formulas. For linear acceleration, I found this formula on Wikipedia: ΔWeight = (accel) * (height of center of mass) * (mass) / (wheelbase) en.wikipedia.org/wiki/Weight_transfer...

A car (C1) coming in the opposite direction hits the other car (C2) at right angle. The car which gets hit, C2 rotates in 180 degrees. What was the speed of the car C1? Assumptions: Both cars have same tyres. W of C1 =3200lb (2012 Honda Accord)...

So sad. The mathematician who inspired the story "A Beautiful Mind", was killed in a taxi accident, along with his wife. They were both in their 80s. RIP. http://www.nj.com/middlesex/index.ssf/2015/05/famed_a_beautiful_mind_mathematician_wife_killed_in_taxi_crash_police_say.html

A car whose mass is 1000 kg is traveling at a constant speed of 10ms-1. Neglecting any friction, how much force will the engine have to supply to keep going the same speed? F = ma Since it is traveling at a constant speed then acceleration = 0 ms-2 hence the answer is 0. F = m x a F = 1000 x 0...

i am looking for a function for calculating the turning angle, using the difference between two wheels speed. i have a model car , with 2 engines and 2 wheels, without steering. thanks.

A typical home vacuum cleaner has the following specs Input watts (Electrical) = 1000W Suction = 80 inch H2O Output watts = 100 air watts where as a 12V car vacuum cleaner has Input watts (Electrical) = 100W Suction = unspecified (10 inch guesswork) output watts = unspecified (10 air watts...

can you charge a 12v car battery with capacitor

Can anyone tell me how much the speed of a car going 60 mph would slow down going up a 30 degrees incline?

I have been thinking about racecar safety, specifically protecting the driver's waist down area. I was thinking of a transmission tunnel, firewall area, and floor board (just by pedals) Here's The Idea: What if I used a Carbon Fibre/ Kevlar weave to be flexable into the position you want then...

When you are driving and open the window, wind blows into it, but what causes the perpendicular direction of the air's motion to your direction of travel into the car? For instance, a bus. A bus is basically a rectangular prism with parallel window sets on either side, completely parallel to...

1. A car travels around a circle with a diameter of 500m at a constant speed of 25 m/s. The static friction coefficient is 0.3 and the kinetic friction coefficient is 0.2. Will the car skid? 2. F = ma. Ffr = μmg. Centripetal acceleration = v2/radius3. So the math for this particular problem was...

I'm working on making a model car, and am trying to calculate the torque required to accelerate the car from a stop to 1.22m/s in 1 second, so I can pick out the right DC motor... The acceleration required is 1.22m/s/s (~ 4ft/s) The weight of the car is 0.85 kg The drive wheels diameters are...

Hi there, I was wondering if it is possible to close a car door underwater? I understand that, due to differential pressure, you cannot open a car door until the pressure equalises. But is it possible to close a car door underwater? Sorry, I know it must sound like a rather silly question...

I had a roommate that is a regular user of meth. I recently found out that smoking meth leaves a residue behind that can be absorbed through the skin, which worries me because I let him borrow my car and he smoked meth in it before. I'm kind of a hypochondriac when it comes to health issues like...

Hi guys... So i searched the net for 2 whole days and found a couple of topics on how static friction is responsible for creating the force required to keep the body moving in a circle.. Friction points towards the center of the circle ONLY when the car is free wheeling i.e moving at a constant...

Homework Statement What should be the spring constant k of a spring designed to bring a 1400 kg car to rest from a speed of 28 m/sec so that the occupants undergo a maximum acceleration of 5g’s? I have the solution manual and can see how they did this, but am curious as to why my attempt did...

Hello guys, I'm currently working on a car simulation just for fun, but I'm stuck... The force to move a car is generated by burning fuel ( to be more percise, diesel or gasolin). But there are more variables: Pressure (i know this because of turbos and such) amount of fuel amount of air (or...

Homework Statement **Rollercoaster is being built and the values are the specifications[/B] Determine the power needed to raise the cars to the top of the hill and have them traveling at the wanted speed. Height of hill: 65m Speed at top of hill: 2.5m/s Time to raise cars: 40 seconds Total...

Hello, I am a high school student and I am studying about rotational motion this term. However, I am having a bit of trouble understanding some concepts about this idea; specifically about cars and turns. First of all before talking about cars turning corners and the forces there, I don't even...

Hello.I need help with wind tunnel.The test section is 2m x 2.5 m x 5 m long.How do I work out size of inlet cone.Thanks in advance

Hi, I hope somebody can help me.I'm stuck in this problem..I want to make sure I made it right before sending to the teacher.Thank you very much 1. Homework Statement An 80.0 kg student sits down in his 920 kg car, and his weight causes the causes the car's springs to sink an additional 4.0 x...

Hi! For a university project I have to design a braking mechanism for a remote controlled car. I have very little experience in designing constructions, so I thought I'd ask here for any advice on the matter. I'm mostly curious about the design pattern, the thought process I should be going...

So I have looked over a few other posts and do not feel like they are covering what I would like done. So I am currently using an Arduino Uno for the controller and am wanting to use an onboard Raspberry Pi in order to run the code and will be attached to my schools wifi in order to have a...

The following is my understanding of how light travels: I’m driving my car at 0.8 c, and turn on the headlights. The light comes out at 0.2 c, producing a net speed of exactly 1.0 c. I see it as 1.0 c, and an observer on the side of the road sees it as 1.0 c, although the light itself is...

When I plug attempt to charge up my cell phone by plugging the cell phone charger in the cigarette outlet in my car, the cell phone charge icon will light up like it does when it is charging, but the charge on my battery will decrease fairly quickly at the same time. I suppose it's possible...

Homework Statement A car with mass 1000kg moves with velocity 50 km/hour. The system of deceleration in a car is based on the principle of "force match" that is applied on each of four wheels with a force of 210 N and the ray of the wheel is 0.3m. Find for how much time, the car with stop and...

Hi everyone, Just out of curiosity, Will this car wing design be effective in generating downforce? I've done some research and read that downforce is essentially the opposite of lift, so a design of an upside down airplane wing would be effective in producing a downforce - yet this car wing...

I need to know approximately what percentage of a vehicle with an airtight passenger compartment must be filled with water before it sinks to the bottom. The fact that it is airtight may normally prevent it from sinking, but if a window was cracked from impact, and water slowly trickled in...

Homework Statement What is the x-component of the velocity of the stuck-together car and truck just after the collision? speed= -7.32352941176471 m/s You are correct. c) In your analysis in part (b), why can you neglect the effect of the force of the road on the car and truck? Homework...

Homework Statement A car has a power output of 45kW and travels at a constant speed of 30m/s. What force is the engine applying on the car? Homework Equations F=m*a W=ΔKE+ΔGPE KE=½mv^2 GPE=mgh W=F*d P=ΔE/ΔT gh_1+½v_1^2=gh_2+½v_2^2 The Attempt at a Solution I really have no clue. Since there...

If CCA can be translated directly to Amps then would I be able to run the battery at max capacity for only 3.6 minutes? 18 / 300 * 60 = 3.6 Minutes? Or am I looking at something wrong?

Homework Statement Car A (m1=1405kg) crashes into Car B (m2=873kg) which is stationary and perpendicular to Car A. Car B is moved a distance of 1.8m out of the way and Car A rolls to a stop 9.6m away at 1.93 m/s. Assuming the coefficient of friction is 0.8, can the velocity of Car A be...

Okay so I have to do a project that examines whiplash and brain injury in physics. My scenario is a minivan full of 7 people of various masses. This van is at rest and gets struck from behind by a truck going 75 mph. What is a reasonable acceleration for the van after it gets struck? I'm trying...

I am trying to figure out what the weight transfer, CoG transfer, and actual weight for each wheel is, for the vehicles (specifically the Subaru wagon at 2:00 minutes) undergoing this test: My friend argues the test is flawed because so much of the weight is on the tires contacting the...

Hi to all the members, I have to consider the front wing car of a single-seater car and then optemize it. I want to consider a simple front wing not like those of F1 because they are too complicate to analyze. I want to consider a simple one (biplane) with not strong variation of curvature. Can...

https://www.physicsforums.com/threads/friction-questions-how-does-a-car-turn.150321/ I have a doubt regarding the following line of post 6 of the above particular thread According to below lines of the mentioned post The applied force will accelerate the box towards the north, so it will move in...

[ mod note: moved from homework ] as a mechanical project we have been asked to design a micro steam car. we have chosen to use a wobbler engine for this. The aim of the project to see how far this car can travel based on a given amount of fuel. We are making a boiler which will provide the...

Homework Statement An amusement ride consists of a car moving in a vertical circle on the end of a rigid boom. The radius of the circle is 10 m. The combined weight of the car and riders is 5.0 kN. At the top of the circle the car has a speed of 5.0 m/s which is not changing at that instant...

**Long Post** 1. Homework Statement The Mazda MX5 (2001-2005) comes with two engine sizes, 1.6 litre and 1.8 litre which are rated as 110 bhp and 146 bhp respectively at 6,500 rpm. You are required to choose one of the two engine sizes and analyse the system with a view to improving the power...

Hello PF, I have a problem that I cannot solve. Assuming my car weighs 4000 pounds with passengers and cargo and is traveling at 100 feet per second, this requires 4000lb*100ft/s = 400,000 ft-lb/s or 727.3 hp of work. But I know the engine is only producing about 50 or 60 hp, and I'm...

http://www.physicsclassroom.com/mmedia/energy/cs.cfmCan you guys explain why a car that is skidding to a stop has the same kinetic energy as its potential after it has stopped?

Hello, So my issue is as follows: You have a car going at a constant speed and the right side of the car hits a ramp which causes that side to elevate and cause the car to rotate about its x axis. What I need to figure out is how fast does the car need to hit the ramp to cause a rollover...

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Homework Statement A roller-coaster car speeds down a hill pas point A and then rolls up a hill past point B. A. Car speed = 20 m/s at point A. If the track exerts a normal force on the car of 2.06x10^4N at this point, what is the mass of the car? (account for gravitational force) B. What is...

I'm currently studying Mechanical Engineering at Level 3 in the UK and I'm beginning my integrated masters in September. I've missed a large chunk of my studies this year due to a broken collarbone I sustained earlier in the year. Instead of getting any special dispensation I'm trying to work my...

HI all, I am new to the forum and have a real question for you physics buffs. It has to do with drag. For a mathematics paper, I am exploring the use of physics in accident reconstruction. I want to use calculus to create differential equations for the drag equation .5p(Cd)(A)v^2... I want a...