It took me a while, but I think I understand your reasoning now. If we feed a constant amount of energy E per time slice delta t (dt) into both trucks, the fixed-load truck-A would reach the final velocity Vf earlier than the moving load truck-B. Hence truck-B would go a further distance until...
Yes, right. But what about the initial acceleration? Would you want to increase it according to the movement of the center of mass during acceleration? So that it can keep up with the fixed truck? Or do we want to leave the acceleration constant, meaning that we put a constant amount of energy...
Please explain: If the truck with the loose load would lead, it could make more distance, hence use less energy to reach destination. That can't be right. Remember, that I assume same acceleration in both cases.
Well, if 9. is true, then 10. is certainly false. Because if the truck accelerates more rapidly it should reach the 60km/h earlier, hence less distance travelled.
I was more thinking about the fact, that the center of mass is moving backwards during the acceleration for the truck with moving...
Yes in both cases same final velocity = 60km/h. Acceleration shall be the same. So it may take longer time to accelerate to the same speed with the moving box. Hence more energy needed. May be
Yes in both cases same final velocity = 60km/h. Acceleration shall be the same. So it may take longer...
Let’s assume we have a Ute with the mass of 1600kg and a load of a 16 kg box with zero kinetic energy in our inertial reference frame. Now I bring this Ute from 0 to a velocity of 60km/h in 3 sec.
The box would move from behind the cabin to the end of the truck, let’s say 1m when the 60km/h are...
I have to calculate how much fuel is wasted, when you do not fix a load in a vehicle.
So lets say there is a heavy box sitting in an almost empty truck. If this box moves how much fuel is lost? Or if you fix the box, how much fuel do you save?