What Energy Changes Occur When a Vehicle Accelerates on a Horizontal Road?

AI Thread Summary
When a vehicle accelerates on a horizontal road, it experiences a transformation of energy primarily from chemical energy in fuel to kinetic energy of motion. The engine converts fuel into kinetic energy, enabling the vehicle to move. As the vehicle accelerates, it requires additional energy input to overcome friction and air resistance, which also involves energy changes. Maintaining constant speed necessitates continuous energy input due to these opposing forces. Understanding these energy transformations is essential for grasping the dynamics of vehicle motion.
fork
Messages
23
Reaction score
0
Describe the energy changes involved when the vehicle is accelerating along the horizontal road.

I don't know what are the energy changes during the process. Thanks.
 
Physics news on Phys.org
When you speak of an object in motion, it has Kinetic Energy associated with it.
 
fork said:
Describe the energy changes involved when the vehicle is accelerating along the horizontal road.

I don't know what are the energy changes during the process. Thanks.


I suggest you think deeply about the problem, starting from asking a few questions. A few questions always leads to a few answers, and inevitably much more questions (ad infinitum, but such is the nature of learning). I would start by asking myself; how is the car even moving at all? Of course, that's an easy one to answer, because I put gas into it. But how does gas help me in understanding how the vehicle moves? Well, that's easy too, the gas gets turned into the kinetic energy of the car via the engine (energy by virtue of the cars motion.) Then you can follow that up with another question being, why must i hold down the pedal to keep the car at a constant speed, since the car keeps slowing down by itself? This involves another energy change, and I'm sure you can figure it out.
 
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Trying to understand the logic behind adding vectors with an angle between them'
My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
Back
Top