The earth is like 23,000 miles long or so. So 23,000 divide by 24 is 958.
So like 958 miles an hour?

 

Sorry, but you're wrong. There are no accelerative forces on the hummingbird except that of gravity, and its own acceleration up (to hover). There are no lateral accelerative forces on it whatsoever. You're an engineer, I would figure you'd have learned about relativity by now...it's a basic theory in physics.

The bird doesn't get knocked back, it's just not moving laterally...but the bus is.

 

the bird will move back.

anything denser than air (ie. bird) will move to the back.

a helium baloon hovering in the car on the other hand, will move forward.

 

The bird does not move. The bus moves.

 

so does the air in it.

 

Therefore, hitting the back of the bus

 

Assuming that the bus is sealed airtight, maybe. Remember that gases flow, so instead of the air simply moving in the direction of the bus, it will move all over. The air inside the bus would have to be packed pretty densely to move like that. Even liquids, which are denser than air, don't move like that.

 

What if you place a ball on a string and attach it on the celling of your car and let the ball be suspended. wouldn't the ball stablize once your moving?

 

once you hit a constant velocity... it would stabilize.

 

question doesnt say whether it is sealed or the bus has all of its windows open h: