We're all on the moving Earth, and we're travelling at the same speed as Earth. Therefore, while it's in the air, the apple moves forward with you, the bus, and the other passengers, and it comes down in your hand. So, when you throw the apple in the air while on the bus, it's already moving forward at the same speed as the bus, and there's essentially no force to slow down it's motion in this direction (assuming it doesn't bounce off the ceiling). (For example, see this previously asked question.) There's a physics law (Newton's first law of motion) which tells us that "objects in motion tend to stay in motion". (That makes sense, right, because you're both moving along.) In order to stop something that's moving, you need to use a force to slow it down, just like you need to use a force to get things moving in the first place. If you and an apple get on a bus, and the bus starts moving down the street, you and the apple will both have the same velocity as the bus. I guess I'll start out by talking about the bus part of the question.
Sorry it took me so long to respond to your question - hopefully it's not too late for an answer! So if that would happen, why do we jump or fall and land pretty much in the same place? I read a question that was about what would happen if Earth stopped spinning, and the answer said that anything that wasn't fixed to the ground would continue spinning, so we would crash against buildings and such. That got me thinking, Earth is spinning around hundreds of meters per second, so when we jump, even if it is for a half a second, shouldn't we land many meters away? (Though we may crash into a building or something.) Why didn't the bus move around the apple so that the apple landed further back? The bus was moving, but the apple always fell back into my hand. I was on the bus earlier, and I was throwing an apple.
I have a question that has been bothering me.
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