Car Definition and 999 Threads

Hi Guys, I am wondering that what physics involved here. 1. Why two men can't lift 2 ton car at 1 meter height but can push same car up to even 1000 meter. 2. At start car push takes much energy but later it requires less energy to push So weight is same but 2 men can't move car vertically...

Homework Statement A 1490 kg car is is traveling at a speed of 22.2 m/s when the driver let's the car coast on a level road. The friction on the car slowing it down is 288 N. How far will the car coast? Homework Equations f=maThe Attempt at a Solution i can find the force but i cannot find...

My plot didn't come out correctly, so I know I did it wrong. Where did I go wrong or was I even close? 1. Homework Statement The hydraulic car lift shown in Fig 1 will be used to lift a vehicle of weight W. Determine the force in the hydraulic actuator required support the vehicle as a...

Hi guys I'm completely useless when it comes to physics and need help with working something out regarding a car accident. I was rear car of a 4 car collision where all cars infront had already crashed. Now the guy infront of me is saying I shunted him which is a complete lie. I was traveling...

Homework Statement A 900-kg car initially at rest rolls 50m down a hill inclined at an angle of 5.0^o. A 400-N effective friction force opposes its motion. (a) How fast is the car moving at the bottom? (b) What distance will it travel on a similar horizontal surface at the bottom of the hill...

Hello! I'm trying to model a car slowing down from speed with the forces of drag and friction and gravity from the road slope.. The model, which models the resistive forces is as follows.. [ Ffriction + Fdrag + Fslope ] / m = -a (deceleration) where: Friction force Ffriction = A...

Homework Statement An 1100-kg car traveling at 24 m/s coasts through some wet mud in which the net horizontal resistive force exerted on the car from all causes (mostly the force exerted by the mud) is 1.7 x 10^4 N. Determine the car’s speed as it leaves the 18-m-long patch of mud. m = 1,100...

Homework Statement A Rail car with a mass= 27000kg's moving at 4m/s collides with another rail car with mass 80,000kg that was moving towards the first. After the collision, both cars come to a complete stop, what was the initial speed of the second rail car? Homework Equations...

Homework Statement [/B] The shape of a car windshield is approximated in the figure below; its length is 2.0 ft and height is 1.5 ft. Obtain an equation of the windshield shape r as a function of θ, r(θ), in the polar coordinate system shown in the picture. When the car moves at 55 mph...

So her is my predicament. I plan to convert my car to a amphibious car. Don't be negative and judgemental about it but I need help to figure out how I should power it on water. I have a 1400 lbs car. It has a 67hp engine. What I'm thinking I want to do is have a sprocket/gear attached to my...

hi guys really odd question (no such things as a silly question) but i was just thinking about this and well according to Newtons every action has an equal and opposite reaction well i know I am talking fractions of a degree per millenia or there abouts i guess but when i get in my car with a...

Homework Statement A 710kg car drives at a constant speed of 23m/s . It is subject to a drag force of 500 N. What power is required from the car's engine to drive the car (a) on level ground? (b) up a hill with a slope of 2.0o? Express your answer to two significant figures. Homework Equations...

Homework Statement Crash Test Craig drives his 800kg car up a 100m ramp that is at an angle of 35 degrees above the horizontal. The car exerts a forward force of 12000N and the force of friction between the ramp and the car is 20N. He is trying to jump over a series of spinning helicopter...

Recently I bought an old car (1954 Ford Zephyr, a six-cylinder 2.2 liter English car) whose recent history was essentially unknown to the seller but had probably done little running for some time. He warned me that the engine was not running correctly - the car was blowing black smoke and...

I will be attending SFSU in the spring for my masters, but i will most likely reside in concord for a very cheap living arrangement. I was told the whole commute including bart and the shuttle is roughly 2 hours one way... Thats a bit intense no? Would driving be any better??

Hello everyone! New here to this forum! My question is...I race a 600 micro sprint here on the east coast. My car has a front and rear panhard bar. The frame mount for the rear is located on the outside of the right frame rail. The frame mount for the front is located on the inside of the...

1. in a tire-throwing competition, a man holding a 23.5 kg car tire quickly swings the tire through three full turns and releases it, much like a discus thrower. the tire starts from rest and is then accelerated in a circular path. the orbital radius "r" for the tire's center of mass is 1.10 m...

Homework Statement A stunt driver for a movie needs to make a 2545kg car skid on a large, flat, parking lot surface. The force of friction between the tires and the concrete surface is 1.75x10^4N and he is driving at a speed of 24m/s. As he turns more sharply, what radius of curvature will he...

Homework Statement Find approximate expressions for T1 and T2 that are valid when h/d << 1 and h/x << 1 Homework Equations T_{1} =\dfrac{mg\left(d-x\right)}{dh}\sqrt{1+\dfrac{x^{2}}{h^{2}}} T_{2} =\dfrac{mgx}{d}\sqrt{1+\dfrac{\left(d-x\right)^{2}}{h^{2}}} h^{2}...

< Moderator Note -- thread moved from ME forum to Homework Help/Engineering > Hi, I Am an electrical engineering student and I want to make a 12 DC car jack for my senior project, but till now I couldn't find the informations I need to start the project. How to calculate the force and torque...

find the energy of a required to accelerate a 1800kg car from 15 km/h to 75km/h an up hill road with a vertical rise of 55m KE=1/2m(V22-V12) KE=1/2(1800)(20.832-4.162) KE=1/2(1800)(433.88-17.30) KE=1/2(1800)(416.58) KE=1/2(749844) KE=374922 J I'm wondering if I'am on the right track, no...

When calculating the total kinetic energy do i have to take into account the rotational kinetic energy of the wheels?

Now, I had a collision approximately two weeks or so ago, however, I was the one blamed for the collision due to a "witness" but I need some help with the correct calculation I need. You see, her car weighed 2602 pounds, where as my car weighed 3359 pounds, but she hit me hard enough on the...

1. "A car moves along a horizontal road against a resistance of 400 N. What is the greatest speed in kph that the car can reach if the engine has a maximum power of 16.0 kW?"Homework Equations : P= W/change in time P= F x v (dot product) Please help ): [/B]

Homework Statement Two cars drive around in circles at constant speeds. Car B's circle is twice as large as car A's, but its centripetal acceleration is three times as large. How many times faster is car B driving than car A? Homework Equations I'm trying to use a=(v^2/r) for centripetal...

I'm making a drag racing game. But I'm only 11th grade, and I'm not the best with physics. I won't ask you to make the game, but what formulas to use. I have the following variables(?). From these I have to make a car move realistically :D //Car specs car="2010 Ford Shelby GT500"; //Engine...

Homework Statement We're told to find the coefficient of friction for a mousetrap car that we've made, using values that we attained ourselves. We released the arm of the mousetrap onto a scale to find Fa → 1.0*10^2 Newtons. This is how we found Fa: m = 1.020kg (←mousetrap held back and...

Homework Statement a 1500 kg car is moving up a 25 degree incline at a constant speed of 30 mph. the tires and road have an effective friction coefficient of u = 0.25 . determine the power output the engine must provide to keep the car moving at this speed. express your final answer in units...

Homework Statement [/B] You are traveling at a constant speed vM, and there is a car in front of you traveling with a speed vA. You notice that vM>vA, so you start slowing down with a constant acceleration a when the distance between you and the other car is x. What relationship between a and x...

Heat up and remove capacitors (see blue) C307, C301, C201, and C207. Simply land your RCA wires to the pins highlighted in red. Purple pin is GND. This should give you a solid 2V line level out. Enjoy your un-eq'd radio:)The above is a tutorial on how to bypass the built-in loudness circuit and...

Hi Folks, Prior to leaving my car in for the annual MOT (UK), there were no vibrations to be felt at any speed. However, to pass the MOT I was advised to replace the 2 front tyres as they were worn. Ever since then, there is a periodic vibration which I can distinctly feel at 85mph but it is...

Homework Statement A motorbike is driving at a constant velocity of 25m/s, and 80 meters in front of it, a car is accelerating from standing still, with a constant acceleration of 3m/s2. When will the bike overtake the car? Homework Equations s=vt Possibly s=ut+0.5at2 The Attempt at a...

A race car exerts 19,454 N while the car travels at a constant speed of 201 mph, 91.36 m/s. What is the mass of the car? F=m(a) I have no idea how to start this problem; I labelled out my given info but i do not know how to incorporate it into my equation. At first i thought to use kinematic...

Say we have two cars, Car A and Car B. Car A is 25 meters ahead and has a constant velocity. Car B has the exact same velocity at the moment of observation, but also has a constant positive acceleration. If I want to calculate how long it takes for Car B to overtake Car A, wouldn't it be the...

When I connected my car with a flat battery to another working car I was told to attach the positive connection to the positive connection but I was told to attach the negative connection from the working car to a piece of metal on the car(preferably in the engine bay) instead of to the negative...

Homework Statement For my ongoing project, I'm thinking of using Solar panels and Regenerative braking system as two main sources to charge the batteries that will run the motor and in turn the accessories of the car. Homework Equations I've to think of how can the above sources increase the...

Hello guys, I am doing a wind tunnel and I want to calculate the aerodynamic coefficient of some cars. To calculate this I need the frontal area of the car and I don't know how to calculate it manual. Is there any pc program to do it or any formula? Thank you very much.

Homework Statement A car starts from rest and accelerates uniformly at 3.0 m/s2. A second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s2. How long does it take the second car to overtake the first car? Homework EquationsThe Attempt at a Solution So let...

Homework Statement Car A is starting from rest and accelerating at 4.0 m/s^2, car B passes it, moving at a constant speed of 28 m/s. How long will it take car A to catch up with car B.Homework Equations d=Vot+1/at^2 The Attempt at a Solution Using the equation above, I used it for car A...

An electromagnet weighing \(3000\) lb is at rest while holding an automobile of weight \(2000\) lb in a junkyard. The electric current is turned off, and the automobile is dropped. Assuming that the crane and the supporting cable have an equivalent spring constant of \(10000\) lb/in, find the...

Recently I have been studying thermodynamics and I wanted to analyze a fictitious car piston of my own design. Indeed I have quite some questions, but the most important is this one, and maybe someone could give me an opinion on my progress. I started off by selecting the fuel, which according...

1. The problem statement, all You drive on Interstate 10 from San Antonio to Houston, half the time at 65 km/h and the other half at 117 km/h. On the way back you travel half thedistance at 65 km/h and the other half at 117 km/h. What is your average speed (a) from San Antonio to Houston, (b)...

How does the velocity of the rain with respect to the car get added up? Velocity of rain with respect to man is given by the (velocity of rain wrt ground - the velocity of car wrt ground). Here it's not being added up!

Hi There, I'm in the preliminary stages of building a spring powered car to race over a distance of 10 metres. It is a yearly event held in my local area and so far we've only seen one spring powered car. I think this is because it may be difficult to design a way to harness the energy...

If you were limited to only using a single mouse trap and cheap raw materials from a local craft store, how would you design a "mouse trap car" to pull a mass of 200g (soda can w/mass)? I'm looking to maximize the mouse traps distance traveled and speed. I'm looking to minimize the weight...

Homework Statement A car, assumed to be rigid and having a mass of 800 kg, strikes a barrel-barrier installation without the driver applying the brakes. From experiments the magnitude of the force of resistance F_r, created by deforming the barrels successive, is shown as a function of the...

A car travels a certain distance along a straight road (in the +x direction). The distance the car travels as a function of time is shown in the figure below. When the car changes speed it does so uniformly. Select the appropriate choice for each statement: T-True, F-False, G-Greater than...

Homework Statement We need to create a vehicle that will travel 6 feet, pick up a ballon, bring it back to the start, and then pop the balloon. For power we need to use mousetraps. We cannot modify the balloon, only the car. The Attempt at a Solution We have thought of using a string...

Homework Statement The acceleration of a particular car during braking has magnitude bt, where t is the time in seconds from the instant the car begins braking, and b = 1.5m/s3. If the car has an initial speed of 45m/s , how far does it travel before it stops? Homework Equations There are...

During summer my swimming pool is 23° C and my loft air is 53° C. (73° F / 127° F) The sun shines on the metal roof with 1x10^5 to 1x10^6 W and I hope to move 10.000 - 20.000 W to the pool. To move the heat down by an external water circuit to the water/water heat exchanger by the pool...