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speed
In everyday use and in kinematics, the speed (commonly referred to as v) of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity. The average speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero. Speed is the magnitude of velocity (a vector), which indicates additionally the direction of motion.
Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second (m/s), but the most common unit of speed in everyday usage is the kilometre per hour (km/h) or, in the US and the UK, miles per hour (mph). For air and marine travel, the knot is commonly used.
The fastest possible speed at which energy or information can travel, according to special relativity, is the speed of light in vacuum c = 299792458 metres per second (approximately 1079000000 km/h or 671000000 mph). Matter cannot quite reach the speed of light, as this would require an infinite amount of energy. In relativity physics, the concept of rapidity replaces the classical idea of speed.
I think I've found a bug or its a fault my my MG4 Trophy 2023 with the Intelligent speed limiter.
when I start the car and set the intelligent speed limiter on you get 3 dots in a red circle because you have not pass any speed sign, that's correct, drive and as soon as you approach or pass a...
I am curious what DC Rapid charge speeds people are getting on their FL?
and which charger brands.
I don't DC Rapid charge very often but don't remember seeing much above 50kw. I know the max is theoretically 87kw.
I know there are many factors like temp, battery SOC, etc...
Hi All,
I recently got an MG M4 SE Long Range (66kw), which I have used predominantly for very short trips at low speed and I have been generally quite happy with it.
However, over Easter, I went for a road trip in the countryside, and I noticed the car felt quite unstable every time I was...
Hi, i installed dashcam that use the 12V cigarette socket so now i have to charge my phone with the USB. i noticed that the charging speed is very slow my S21U give me 3 hours from 50% to 100% instead of 30 min at the cigarette socket.
I tried the front USB A and C and also the rear USB A...
I have had my MG4 Trophy for just over 2 months now and love it. However, this has just recently popped up on my dash screen which is very perplexing. It appears to be a symbol showing a "foot on a pedal" in a (brake?) circle. This pops up when the car is just moving off so very confusing as the...
Having done a 250+ mile trip a few days ago, during which there were short periods of 'excessive speed', I noticed some minor vibration via the steering wheel. As the journey was mostly on our poorly maintained motorways and trunk roads (A30/M5), I wasn't sure whether it was as a result of the...
Hello, my English is not very good so I translated with google.
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We have an MG Marvel R and are generally satisfied with it.
However, some things are very disturbing and I would like to do something about them if possible.
1 The speed assistant does not remain at the selected setting. (Disable...
The car is fine upto 30 mph, once you hit this magical number there is a rumbling / minor vibration? Which continues upto 70mph. I assumed wrongly that it was a wheel bearing, this has been checked and all fine. I am wondering whether it is one of the motors? Any help would be appreciated.
Based on the post 'LKA Query' I had to rethink what was happening with my MG. This is the situation:
-Before I leave for work, I always set LKA to alert an disable the speed signs. Just like today. And yes, I always have the car on ready when I do this.
-I first need to drive through town. Speed...
I have an FY22 ZS (facelift model).
I have just discovered how to turn on the Intelligent speed assist and activate it using the button on the ACC stick (with ACC off).
However, each time the car is switched off the Intelligent Speed Assist also goes back to being Off and I have to go through...
Can anyone please confirm if I can drive at over 30mph using EV mode only . Eg. I would want to drive up to 50 mph in EV mode only and no ICE.
Thank you
Hi everyone,
May be a simple answer, but….. how do you set & operate the speed limiter on the MG4 (not cruise control, as i know how to use this). Also is the speed limiter automatic, i.e. uses the built in camera to read the road side speed signs.
Thank you in advance!
Hello
Relatively new MG4 owner.
I really like the speed limit option - especially here in London - but I can’t get it to remember the setting.
Each time I start the car, I have to go into settings, set cruise control to limit, set the mode to automatic, then turn it on on the steering...
My fan system has stopped working, no air is coming out.
The temperature shows -40 celsius, while where I live the temperature is 5 celsius.
I can't change the speed or change the temperature
Has anyone experienced this and have a solution?
The workshop visit is in 2 weeks...
I have the very latest Trophy with rear wiper and 14" wheels. Latest update carried out last week, dealer had car for 1 week, as axillary battery was going flat. Since the update the speed signs haven't been displayed on the dash. Dealer says update would not affect this item, albeit these signs...
Has anyone found a way to switch MPH to km/h - or even display both? Would be useful when travelling in Europe. The car must be capable as it sells in all markets, but probably a deep setting that isn't easily accessible
Morning all,
When I charge at home with my Indra charger, I don’t always get 7kW speed, which is frustrating when (like today) I need a full charge and it has only added about 10% overnight.
I’ve got screenshots from my previous two charges and to clarify - I do nothing differently in terms of...
Apologies if this is a silly question, but is there an optimum speed to aim to drive at to keep the battery as charged up as much as possible between chargers on a long journey on motorways/ A roads. I realise at 60mph you use less battery than 69mph but would driving at 50 ( if safe) help. I...
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