Car Definition and 999 Threads

Hello! I have some doubts regarding centrifugal force.. Imagine yourself in a car which is taking a sharp turn. You tend to fall to the other side ( if the car door is open you'd fall out of the car) Is this because of inertia which opposes the sudden change in motion or is it because of...

Homework Statement A car starts to run from rest with acceleration 0.5 m/s2. How long does it take to travel distance 60m? [sic] (I have a Russian teacher for AP Physics) Homework Equations V= (Xf-Xi)/(Tf-Ti) ΔX= Vi*T+(1/2)aT2 The Attempt at a Solution I tried to find velocity, but that...

Homework Statement A car is driven on a large revolving platform which rotates with constant angular velocity ##\omega##. At t=0, a driver leaves the origin and follows a line painted radially outward on the platform with constant speed ##v_0##. The total weight of car is W and the coefficient...

Hello. I've searched the internet hard but couldn't find anything about this so i decided to ask this to physicsforums. If a car is up a slope with friction and it's stopping(balanced) by using the gas pedal, what is the energy consumed by the motor of the car? I know F.x is 0 in this...

Homework Statement Here's the question for my coursework. "Everyone knows the feeling of getting into a car that has been under the hot sun.Nobody likes it. Design an experiment and investigate the factor(s) that contribute to this condition." Here's my question, 1)Do window tint really helps...

The question is - A 1200kg car drives off a cliff with a horizontal velocity of 30m/s and an upward vertical velocity of 15m/s. a) Neglecting air resistance, what is its horizontal and vertical velocity after 1s? b) What is the maximum height above the ramp the car reaches? I used - v =...

1. The hydraulic lift at a repair shop is filled with oil. The car rests on a 25-cm-diameter piston. To lift the car, compressed air is pushed down on the 6-cm-diameter piston. a) What air-pressure force will support a 1300kg car level with the compressed air piston? b) How much must the...

This is my first thread on the forum. I'm really glad to have found this wonderful resource. I have a lot of intuition in mathematics and one of my dreams has been to have the same level of intuition in physics. With your help I hope I can achieve that. I was reading an example in Physics...

Hello there, Just got an old car, and I was looking at the specifications, and trying to teach myself Newtonian physics. But I cannot get it to work out correctly. Please tell me where I go wrong. The car weighs 900 kg. The engine has 200nm of torque, it accelerates from still to 27.7 m/s...

Hi all Please clarify this doubt on work done by friction. The text referred is from the book 'Introduction to classical physics by Morin' - Chap 5, sec 5.1 He is referring to the work-energy theorem : Wexternal = ΔK + ΔV + ΔKinternal "Consider a car that is braking (not skidding). The...

Homework Statement Car Dynamics f(t)→ \frac{\frac{1}{M}}{s+\frac{D}{M}}→y(t) Applied Force Velocity Homework Equations M=1,000 kg and D=1000 kg/s Where f(t) represents the input force and y(t) is the output velocity. M is the Mass and D...

If the hood of my at rest car is 106 degrees and I drive at 55 MPH, how much is the hood temparature reduced by the wind so created?

Homework Statement A car of mass m takes off from rest around a circular track of radius r . Speeding up at a constant rate, the car takes t seconds to go around the track once. What is the magnitude of the net force acting on the car at the end of the trip? Homework Equations a_rad...

Hi, Is it possible to permanently magnetize a car engine dipstick? If yes, what would be the easiest way to get it magnetized, such that it will be able to lift an (rusted steel) object which is about 10 grams or lighter.

The radiator of a car can contain 10 gal of liquid. If it is half full with a mixture having 60% antifreeze and 40% water, how much more water must be added so that the resulting mixture has only a) 40% antifreeze? b) 10% antifreeze? Will it fit in the radiator?

Hello dear all My brother is so talent on car design on paper i upload a car picture that he make on paper How he can use his talent? What he should to do?:)

Good evening. I'd like to first start by saying I am new to this forum, and I am a physics noob. I know that very fact will help people shy away from trying to help me answer this question. This problem (which an image is posted) is 1 of 5 questions on a take home kinematic quiz. I've managed to...

Assuming you have an electric car that can go 100miles at 70mph on a single charge, what kind of range could you get with the following configuration? An electric car that runs off the main battery bank. Vents on the outside of the car funnel air to a Tesla turbine while the car is in motion...

Hey! I have a project where I'm building a car running from direct sun-light only using solar-panels and bike hub motors. I would like to determine max velocity before cashing out on motors and panels. I have some numbers from the panels and motors I looked on, how do I turn them into the max...

Homework Statement A stationary car on black ice (no friction) is on a banked road and begins to experience some acceleration. What force is causing the acceleration? a) The horizontal component of the normal force b) The vertical component of the normal force c) Gravity Homework Equations...

Homework Statement I'm riding my car. My eye is 40cm from the rearview mirror. I want to know if I can see the car behind me. The car behind me is 2.5m large. Can I entirely see the car behind me in his whole wideness? The mirror is 23 cm long. The car is 4 meters behind us. Homework...

Hi everyone, I was just wondering about this... If I tie a balloon outside a car, using a moderately long string, and the car heads for a left turn on the road with constant speed, then while turning, what would be the path followed by the balloon? I was thinking that maybe the balloon...

Friction opposes motion. When a car is turning around a curved road, the friction between the tyres and the roads provides the necessary centripetal force. That is, the frictional force would be in the same direction the driver is turning in. So would motion of the wheels be opposite to...

1. A toy car moving at a constant speed of 3m/s on a horizontal road, heds toward and falls off a cliff. As it falls, it is notices that the car's velocity is directed 80 degrees below the horizontal when the caar has dropped an unknown vertical distance below the top of the cliff. Find the...

So basically, I have 4 LED strips (each rated for 12v) that I’d like to make pulse to the bass of the music, such as in this video . There are a lot of misinformed people on YouTube who just hook up their LEDs directly in parallel with the subwoofers, which doesn’t work well at all and will...

Homework Statement Which head-on collision between a small car and a large truck causes a larger conversion of kinetic energy: one in which their initial momenta are the same magnitude, or one in which their initial kinetic energies are the same? Assume the same kinetic energy for the...

I have built a mousetrap car for physics however it will not start. It will only jump in place and then stops. A requirement for the project is that the car must be able to start with a marble is dropped on the trap meaning I am not able to remove ANYTHING from the trap. However when I set off...

Homework Statement Why are the bass notes of a car radio heard by people on the street and not the high notes The Attempt at a Solution I think it has something to do with fixed and free end boundaries and may have something do with the fact that the high notes are being reflected...

Hello Guyz! First of all I am new here and I found this section to be appropriated for submitting my question. Well, I was Investigating on Car headlight Alarm and how it should sound a buzzer when the headlights are on? I have attached the circuit diagram as well you might want to have...

Here is the latest report of the archaeologists who have examined the recently discovered skeleton in Leicester, which most likely is the remains of Richard III: http://antiquity.ac.uk/Ant/087/0519/ant0870519.pdf

Hey guys, I am just a simple high school student in a one-year physics course who wants to improve his ability in applied science and using physics to create new things (my dream is to be an inventor) I always had this idea of a Maglev (electromagnetic) hover car where it uses the messier...

Trying to understand what happens upon impact to the metal of a car that is stopped (Vehicle 1)when another car's driver's side rear (Vehicle 2) impacts the stationary car . Vehicle 2 is a heavier, larger car and is moving in reverse at approximately 10-15 MPH. The impact site on Vehicle 1 is...

Suspects "pocket dial" 911 during car break-in A couple of geniuses. http://news.yahoo.com/blogs/sideshow/alleged-crooks-accidentally-dial-911-during-break-194041266.html?vp=1

Or, just almost perfect? 99 out of 100? I know this isn't a claim by Tesla, just a review, but (The review itself isn't available without a subscription.): http://www.cnn.com/2013/05/15/opinion/harley-tesla-best/index.html A synopses is here...

Homework Statement A car with a horn making a frequency of 'f' Hz is driven in a circle with a radius of 'r' m. The uniform velocity of the car is v ms-1. Draw graphs showing the frequency observes by the observer who is standing on; a) Position A b) Position B (Position B is very far...

Homework Statement Find the vertical acceleration of a car going over a speed bump a foot wide and 4 inches tall.Homework Equations Acceleration = dv/dtThe Attempt at a Solution http://imgur.com/55t2WCQI am getting an answer that is around 25*g I know this is way too much. neglecting the shocks...

I've read so much stuff on the internet including other threads on the forum but am still confused. When a car is making a turn on a level road, WHY does the static friction point inward? From what I've learned the direction of static friction points in the direction opposing movement but the...

Please help -- Efficiency of car engine question... Unit test tomorrow Homework Statement A car's engine is only 12% efficient at converting chemical energy in gasoline into mechanical energy. If it takes 18000 N of force to keep the car moving at a constant speed of 21 m/s, how much chemical...

I owe $4700 on my car and need to get rid of the payments so I am selling it and getting something cheaper with the difference between what I owe on my current car and what I am selling for. I obviously don't have the money to pay off the lien. I am selling for ~$8000. How do I go about...

Homework Statement In the badly loaded front-wheel-drive minibus shown in Figure Q26 the centre of gravity has been moved away from the driving wheels, determine the max acceleration possible in m/s2 if l=3.0 m, h=1 m, and the static co efficient of friction μs = 0.3. (Image is attached below)...

For a lab in physics where we have to go through an enormous process to calculate the drag coefficient, I am trying to figure out if one of the values I got along the way makes sense so that I don't continue with bad data. I gathered time and speed deceleration data and drove a 2002 Honda...

Hello, I am needing help with some calculations for my project. I have to design an electric Car design and have to include some calculations. Given the maximum speed of the car is 2Meters per Second and the the mass of the car is 1.45kg: Calculate F And how do i calculate the torque at the...

I'm trying to find out the force on a collision that happened to me recently, nothing serious but the lady went away in the ambulance for what I believe wasn't that much force exerted on her at all. Both vehicles were at a stationary position about 2.5 meters away from each other. The second...

Homework Statement "In a drag race a car starts at rest and attempts to cover 440 yd in the shortest possible time. The world record is 5.637s; the final speed was 250.69 mi/h at the 440 yd mark" a)What was the average acceleration? b)Prove that the car did not move with constant...

Now, if I can just get the thing to shut up... :rolleyes: Yesterday after work, my wife and I picked up our new car, a 2013 Chevrolet Sonic. Its predecessor was 13 years old, also bought new, so shopping for a replacement gave us a bit of "culture shock." Even though we chose the...

Homework Statement A race car is traveling towards you and you hear a sound a frequency 3895.9 Hz. Then the car shoots by you. As the car moves away you hear a frequency of 2574.6 Hz. What is the speed of the car? Assume the temperature of the air is 20 degrees Celsius. Homework...

Why are the engines of sports cars so loud? I thought a good engine should be very quiet because all the work done must go to moving the car forward. If they produce so many noises, isn't that just wasting fuel/power? Is the production of big sounds a must for the working of the engines, or...

I am currently designing a upgraded car suspension top mount for my university project. I am designing it in CAD and need to test it against the forces it will need to withstand however i can find no information to calculate such forces. It would be the front suspension mcfersion strut Any...

**Not a homework problem but I was directed here** Hello, over the weekend I was involved in a car accident and received a careless driving ticket because the officer believed that I was going an insane amount of speed. My first instinct to react to this would to be to sit down and do the...

A 1689 kg car collides head on with a 2000 kg truck. The collision is elastic. If the velocity of the truck is 17km/h in the same directions as the car's initial velocity, what is the initial speed of the car in km/h? I'm getting an answer but doesn't seem to make sense. So I'm...