Strange question, do you really know what you are asking about?
Constant speed means that the speed stays the same. If both vehicles have the same MPH, then they are equally fast.
The distance traveled by a truck driving at a constant speed compared with time.
The Max speed was 60 because that is the speed limit. No faster ever.
a downgrade
The answer will depend on the speed at which the truck travels.The answer will depend on the speed at which the truck travels.The answer will depend on the speed at which the truck travels.The answer will depend on the speed at which the truck travels.
Change the air filter and spark plugs, and try to drive at a constant speed.
Speed limiters build into the truck are for safety reasons, defeating it would be dangerous
They are both going at the same speed.
Constant speed is a fixed rate of displacement of an object. Constant velocity is a fixed rate of displacement in a fixed direction. That might not make sense, but let's dig in a bit and see if we can make sense of it. Consider a truck on an open freeway and a horse on a merry-go-round. If both the truck and the horse move a fixed distance per unit of time, they are moving at a constant speed. Speed is displacement per unit of time. In the case of the truck, it might be convenient to measure it in miles per hour or kilometers per hour. The horse might be moving at a speed measured in feet per second or metres per second.Velocity is similar to speed, but it includes a directionvector. An object might be moving at a constant speed and a constant velocity, but another might be moving at a constant speed but not at a constant velocity. The only difference might be that the latter object is constantly changing direction. Recall the truck on the freeway from the above example. It might be moving at 60 miles per hour east, and that defines its speed and direction, or its velocity. The horse, however, is constantly changing direction. Its speed might be constant at, say, 6 feet per second or 2 metres per second, but it is moving in a circle and is constantly changing direction. Its velocity will, therefore, be constantly changing as well.
30 kph
If it's your truck, and you're in a country where truck speed limits are not dictated by law, you simply go to a dealership or mechanic shop certified to work on the Detroit motors, and have them change the ECM controls. If it's not your truck, and you want to drive faster, I'd recommend you buy your own truck and pay for your own fuel.
A diesel air intake does have the potential to increase the speed of your truck, and to make it go faster. The nature of the intake will allow for a greater amount of air to reach the engine. The increased air supply will, in turn, create superior combustion which should allow for greater overall speed.
It is 45 mph.