Car Definition and 999 Threads

Summary: Basicly i am trying to find out if there's anyway to calculate the diffrence in pressure underneath and above the car so i can calculate the downforce Hello I am doing a project about aerodynamics of a formula 1 car when i wanted to do calculations of how much downforce each...

I found the following law for the state of CT Type 2 or 2A Lights—Upper beam limited to 20,000 to 75,000 candela per lamp. Lower beam limited to 15,000 to 20,000 candela per lamp. Type 1 or 1A Lights—Upper beam limited to 18,000 to 60,000 candela per lamp. I can't find a definition of Type 2...

QUESTION: If all the curves were removed, making a straight line from top to bottom, how quickly could a car reach the top of a mountain? VARIABLES: The mountain has a slope of 6.4% The car's initial velocity is 0. The car's top speed is 203 mph, (which will also be its final velocity as it...

Hints given: -Start with free body diagram. Use the relationship between impulse and momentum to find the final velocity of the car after he has pushed for time t. -Use a kinematic equation to relate the final velocity and time to the distance traveled. -What is his initial velocity? My...

Hello all, I am currently working on a project where I have to make a total of 3 pinewood derby esque cars. The rules of the project are pretty strict. First, the car must remain on the ground at all times. Second, the car must be self propelled. Third, the car must be able to go in a straight...

Hello, I tried to put it in an equation, but it didn't really work out. In this situation, the car was about the size of a model, and, while not exact, the radius of each wheel couldn't have been more than like a centimeter. Conversely, the ball was like twice the size of the car and had a...

1. For the car to apply brakes, we have ##v^2=2ar⇒a=\frac{v^2}{2r}=μg\;\;[ma=μmg]⇒v=\sqrt{2μgr} ## 2. For the car to go in a circle ##\frac{mv^2}{r}=μmg\Rightarrow v=\sqrt{\mu gr}##. We find from above that the maximum velocity ##v## possible to avoid a collision is ##\sqrt{2}## times as much...

Homework Statement: I need to find coefficients for car, all of them must be about the same car, but I don't kbow where to look, can you help me? Homework Equations: m - mass of the WMR J - moment of inertia of the WMR about G F_d - driving force F_f; F_r - front and rear wheel lateral forces...

I tried this problem 3 times. I only have two attempts left. First time: Centripetal acceleration: 7560 m/s^2 Centripetal Force: 4.7 Newtons Second time: Centripetal acceleration: 25.032 Centripetal Force: 4.7 Third Time: Centripetal...

Ok so I think that the equation for centripetal force is the mv^2/r and this SHOULD equal the horizontal component of the normal force on the car. Vertical component of normal force and gravity would cancel out. However, when I input the numbers into the equations I don't get equivalent values...

When my professor solved it, he wrote ##k## in the equations. But there are four springs, so why didn't he write ##4k##?

Part B of the following problem seems to be fairly straightforward, but I can't seem to understand it properly. I might be overthinking the problem entirely. Would anyone be willing to help?

I know it takes friction for a car/wheels to move forward. However, I am confused by the free body diagram. As a torque is applied to the wheel, the wheel applies a force to the road, and as a reaction, the road puts a force on the wheel(this is friction). Then wouldn't the torque of friction...

If I were to have a theoretical car with 4 motors controlling the 4 wheels(each with a radius of 5 in and a width of 1 in) and the car was 100 pounds, how much stress would be exerted back on to each motor?

At the moment of throwing the ball the ball will have a vertical vel of 4 and horizontal of 3 wrt to elevator so as seen from inside the elevator the ball will behave like a projectile where g(eff) = 8 and with time period 1 sec hence range will be the displacement which should be 3 m but ans...

240/8=30.

OK I just had time to post and hopefully ok but still typos maybe the graph was done in Deimos wanted to try tikx but not sure about the polynomial trying to as many physics homework before classes start on Aug 26 Mahalo

I am learning driving. As a learner, I couldn't avoid two small scratches on one side of our car (a Toyota Etios Liva, about 3 years and 6 months old). The scratch on the door is about the length of your little finger on the hand, and the width is so small that you won't find it unless you go...

"It should be able to accelerate from rest to 20 m/s at least 50 times before the spring needs winding" -So F = -kd = -k(2.1) - d is 2.1 because it is the compression length Now, since we know the d, divide it by 50, 2.1/50 = 0.042m Basically, the spring unwinds 0.042 m 50 times for a total...

I have two cars, one an early 2000 Honda CRV and second one a 2016 Subaru Forester. The Subaru Forester is prone to acid rain marks in the windshield and side windows and rear. But the CRV didn't seem to have obvious acid rain after more than 14 years parked in open air. Are some glass more...

Last night about 2am (checked cctv). The 2001 honda crv car hazard light suddenly turned on in the parking (its that button at the middle above the aircon). When i found out at 7am. The car couldn't start so i connected the jumper, hence asking the question in another thread. Has anyone ever...

When using two cars to jumpstart a dead battery. Why can't you connect the negative jumper cable to the negative terminal of the dead battery (which is what I commonly do) but instead need to connect the negative jumper cable to grounded metal...

When two cars crash into one another they generally come to a stop, yet we are told momentum cannot be created or destroyed. Where did their momentum go? It seems like the kinetic energy went into the damage in the vehicles but apparently that has nothing to do with momentum?. Thanks...

The car in front of us (2.car): ## s_2=v_0t ## The car that is accelerating (1.car): ## s_1=x+2l+s_2= \frac{1}{2} at^2 ## Now, if we substitute the equations, we get ## x+ 2l+ v_0t= \frac{1}{2} at^2 ##. I have now 1equation with 2variables (a, t)- any suggestions on how to continue?

Correct me if I'm wrong, but I think it is not possible to solve (1) with all the data that's given. As for (2), I have come up with the following solutions: (a) - The tension in the string acts as the centripetal force on the fuzzy dice (b) - The frictional force between the road and the car...

I have drawn a arrow pointing straight down (South) 110km and an arrow off that to the right(west) 70km.I know that the distance of the journey would be 180km. How do I go about finding the displacement?

I was wondering how one can calculate the radius of the circle a car will follow if it turns its wheels a given angle to its current velocity? For example, if i turn the wheels of my car by 12 degrees to my current direction, how large of a circle will the car perform

Step 1. Integrate the function --> it comes out to -1.8t3+t2-8t+c Step 2. Figure out the integration constant --> I know that the velocity of the car is 30m/s at t=0s so making 30m/s = -1.8(0s)3+(0s)2-8(0s)+C it would seem that C is 30m/s Step 3. Calculate velocity at 4s --> V(4s)=...

Ffriction=0.94N u (coefficient of friction)=0.4 Fnormal=2.35N Mass of Cart= 0.24 kg Spring Potential Energy of the Mousetrap=0.2044 J Circumference of Wheels= 0.373 m Circumference of Axles= 0.0047625 m Drive Train Length= 0.254m Theoretical Distance based on Circumference of Wheels...

After the foot is released from the gas pedal, the car will naturally start decelerating. From my understanding two things are causing this: air resistance and kinetic friction. From my understanding also, in a vacuum and in a place where gravity is relatively small, the car would not...

Hi All, So i am looking to buy a petrol generator to run a 2.2KW electric motor. I was thinking of getting a 3KW model which under normal conditions this should be ok - but on start up I've been told an electrical motor draws 6 to 10 times the normal load, which is way too high for the...

Classic car number of overall purchases = A Specific model purchases = B Ratio of specific options = % A = 225,000 B= 9560 Option 1 = 41% of all B Option 2 = 9% of all A Option 3 = 6% of all A Option 4 = 65% of all A Option 5 = 30% of A Option 6 = 9% of all B Probability or rarity of one...

Hello! (Wave) Given a rent a car company, suppose that it has 411 cars for each day. So far there are 246 bookings totally for July. The total days of rental are 2625 and the total days/reservations 170.24. Which formula can we use to make a forecast how many bookings there will be in July?

Subaru flat fours (a boxer engine design) are notorious for losing oil pressure under high lateral G's. The usual solution is using a dry sump. Dry sumps are expensive and complicated. They are, based on currently available remedies, unnecessary until you exceed 1.5 G's. I am at that threshold...

Hi. My question is for now why the equation of x as a function of time for phase of motion ab is ##x=50t-375##? Shouldn't that be ##x=375+50t##?

This is a picture that was published today in our local paper: This is not the first time a car has gone up in flames. A number of cases have been reported where cars moving on roads have, all of a sudden, blazed up. In a significant number of such cases, the people inside breathed their last...

Hello, I wanted to get a physics analysis of the best way to drive an electric car for maximum range. For example, would it be more efficient to drive on side streets at a slower speed of say 30 mph, or would it be better to get on the freeway and drive 60. Should I be accelerating as slowly as...

Hello all: I have a question about electric car battery ? What is the best charging method for the battery ? Is it high ampere charging or high voltage charging ? Thanks in advance H

Hello Team, Had a shower thought, and thought I spend a few minutes online with people much smarter than I to throw an idea at... So, I have a light weight truck. Say a little dodge dakota pickup that weighs +/- 3000lbs. I want to take out the motor and replace it with a little baby 20hp...

Hi, I was wondering whether I could get some help on this problem. I think my questions arise from a misunderstanding. I have attached an image of my working and an image of the solution copied out (that is all it says, doesn't have much explanation). I know the working I attached was for a...

for part 1: t= d/s = 9000/13 = 692.31s for part 2: What i am unsure about is wether or not this is after the initial observation or exactly what they are asking honestly. so i found the relative velocity of the bus to the car and vice vera and came up with: t=d/s = 9000/4 = 2250s however i don't...

As I get it is that after the contact breaker breaks the contact then the current flows from plus of the battery through the primary winding then through the capacitor and to the minus of the battery. But then what happens to the secondary current? It goes from secondary coil and then what? Does...

Hi. My question is regarding toy car A. If the car moves to the left, is the constant acceleration of ##2.40 \frac {cm} {s^2}## to the left or to the right?

Imagine a carom shot in a perfect world. A ball travels diagonally from the lower left-hand corner towards the right cushion and bounces off to head towards the upper left-hand corner. The ball has X and Y momentum. On the collision, the cushion absorbs and then return all the -X momentum to...

Hi, I am trying to work out the calliper breaking force of a small motorsport car i.e. the moment force needed to be exerted at a given distance on the wheel to bring the car to a stop. I initial calculated the force using an equation which highlighted the specific capabilities of the brake...

Hello, I am attempting to expand my physical understanding of some engineering principles I’ve learned during my first semester of ChemE. I am making a small plastic car that will be propelled with a weak fan. I am attempting something similar to a ChemE project car. Is there a way I can use a...

Imagine an half car model with the two suspension and two wheels. There is a torque applied to the rear wheels, that torque create the force between tire/asphalt that pull the car. How that torque react in the main body? I have two hypotesis: 1) It's only internal force that tend to bend the...

I have made multiple mousetrap cars, and they've all have the same problem. They all have rolled when I held them however when I would put them on the ground they would not go. I think the problem may be a friction problem, however I'm not sure. I don't know what to do. Any advice/help would be...

Homework Statement Homework Equations v = I + j + k v = d/t The Attempt at a Solution I thought the answer was as simple as: v = 63i + 0j + 0k, since the car only has motion in one direction... ...but I got it wrong, so clearly I'm missing something here.

Homework Statement A man owns two old cars, A and B, and has trouble starting them on cold mornings. The probability both will start is 0.1; the probability B starts and A does not is 0.1; the probability that neither starts is 0.4 a) Find the probability that car A will start. b) Find the...