All Questions
8
questions
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votes
3
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Pseudo Orbital motion only due to Coriolis force
Planet, say of mass M and radius R is rotating with some angular velocity ω and a object of mass m (initially on the surface and rotating with the planet) was launched with velocity v vertically ...
- 19
1
vote
3
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9k
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What exactly will happen if you jump in the upward direction from a roof of on a moving car?
I'm not a physicist and I'm a little bit puzzled with the image below:
I know it's a joke but if we assume we don't have air resistance what exactly will happen if someone jump in the upward ...
- 13
3
votes
3
answers
298
views
How to conceptualize Newton's apple?
I have no physics background, which is the genesis of my question.
In pop-science, it is frequently mentioned that Newton's apple didn't fall toward his head, but rather that his head came up and ...
- 141
0
votes
1
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140
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Can we move without moving? [duplicate]
So here is the question,
If I jump and hover over the ground for sometime why don't we move away from the point I jumped from? Because earth is rotating so if I hover long enough we should move from ...
- 13
0
votes
1
answer
122
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Gravity on hovering objects
Imagine a remote controlled toy helicopter vertically takes off from a table and hovers at about one metre over the table that is of one metre height: hence, the total altitude is 2 metres.
What will ...
1
vote
3
answers
770
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Fundamental paradox with Newton's Law of Gravity?
This is my first post here, but I've been struggling with this problem in my head since I studied physics at school when I was 14 (30 years ago!).
There seems to be a fundamental paradox with Newton'...
- 131
0
votes
1
answer
642
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Does Earth get gravity due to it's spinning? [duplicate]
Consider my example below.
Example: 1. A man standing on grass(point) on earth surface.
2. He jumped.
3. And returned back, and he could find the same grass(point) under his foots. Right?
If earth is ...
- 13
2
votes
3
answers
13k
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Dropping a ball in a fast moving train
If I drop a ball in a train moving at a constant speed, will it land on the spot I aimed it at or a little away as the train has moved while it was in air? If it lands away, will the observer not know ...
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