how do you build a car without using chemical reactions, electricity, or compressed gas?

Question

1. a mechanical car based on the laws of Physics
2.no electricity, chemical reactions or compressed gas
3. built from raw materials

1. a mechanical car based on the law of physics
2. no electricity, chemical reactions, or compressed gas
3. build car using raw materials
---it was said to use the rubberband method or the mousetrap method but how?

Answer 1

ask fred flinstone.

jk

what energy source are you allowed to use? fire!! solar?

or a bicycle-type of vehicle.

since no one has invented a perpetual motion machine yet, you will have to power it with something.

?? sorry


OK,,, QUESTION:
how big is this car?
is it a toy, or are people supposed to ride in it?
do they mean "build" w/out that stuff....or "operate the car" without that stuff?
if it is a toy....you could go to a hobby store and research what they have available, then build it yourself.
if you use rubber bands, you would need to attach both ends to the frame along the axle, and attach the center of the bands to the center of the axle, so when you roll the car backwards a few revolutions, it will want to un-roll and push the car forward.

that, i think, would be considered "potential energy" in physics.

hope that helps

Answer 2

First, you have to have a --bunch-- of friends who are willing to push ☺

Doug

Answer 3

Wouldn't that just leave pedal power?