Any physics people out there I just had this random thought well driving today and I'm wondering if you can give me a basic answer.
So if you are driving in a car at 100kph, you can move around in the car as if you are moving at 0kph, and e.g. A bee flying around in the car can fly at less than 100kph and not hit the back wall.
But my weird question is, if you step outside the car you are immediately moving at 100kph before you hit the ground - so where does this acceleration come from and how does the energy transfer from the car to you or whatever?
Weird question I know but hey there's probably some smart people here on Epicmafia.com
When you're sitting in the car, the seat that's connected to the wheels that are going round and round at 100 km/h, are giving u the necessarily momentum/acceleration. When you jump out of the car then there's nothing that would apply that force to you and therefore the resistance caused by air is going to slow down. For you to understand this better, assume that it would take you 20 seconds to come down instead of half a second or whatever when you jumped up in a bus. If this was the case, the moment you'd jump your body would lose that connection to the accelerator (I mean the bus) and if given enough time (which we did when assumed it'd take u 20 seconds to come back down to the floor) you'd lose the acceleration that you once had and you'd be pushed (smashed) all the way back to the end of the bus.
the bee flying inside the car flies at 100 kph, you move at 100kph. You move at the same speed as the car. You dont accelerate to 100kph as you exit the car lol
deletedover 8 years
It's the momentum. No acceleration there, in fact assuming you would keep going and you're not touching the ground yet, air resistance will remove some of your speed, so you'll go slower. You'll hit the ground and if you immediately stop, all the energy is transferred into ground or friction. I think theres no energy from the car to you, but since the car is going at 100kph or whatever, you will keep its momentum since you cant go back due to the chair. Jumping out without hitting anything keeps you going.
TLDR, acceleration comes from momentum and you'll slow down due to air resistance, and not really any energy transfer.
I'm not really a physics person, but I think this is what I learned in school or something.
