All Questions
10
questions
0
votes
1
answer
64
views
Inertial to Gravitational Mass Ratio
According to Galileo's discovery the objects fall at the same rate due to the equality of inertial and gravitational masses. Where in our universe these two would not be equal? Following the question,...
- 11
0
votes
6
answers
220
views
Acceleration in free fall [duplicate]
A body in free fall "feels" no gravitational force (equivalence). Why does it continue to accelerate.
Why is your program refusing my question?
1
vote
4
answers
159
views
Gravity, falling bodies, and the equivalence principle
Why is that bodies in a box accelerating uniformally in space that is sufficiently removed from gravitational fields fall identically to bodies in a box located in a homogeneous gravitational field (e....
- 85
42
votes
3
answers
17k
views
If I drop a ball in an accelerating rocket, will it bounce? If so, how?
Einstein's equivalence principle says that you cannot distinguish between an accelerating frame or a gravitational field. However, in an gravitational field, if I drop a tennis ball, it will bounce, ...
user189508
4
votes
3
answers
970
views
The Equivalence Principle – Why Objects Fall at the Same Rate
I’m having a debate with my father. He says that it is perfectly understandable why objects fall with gravity at the same rate despite being of differing masses. His point is, in relation to the mass ...
- 719
0
votes
2
answers
502
views
How is space ship's acceleration perceived if the acceleration is perpendicular to the velocity?
Spacecraft in orbit around the Earth are constantly accelerated by the gravitational field of Earth. That's why the spacecraft ($m \ll M$) is in an (elliptical) orbit around the centre of gravity of ...
- 3,025
0
votes
4
answers
2k
views
Questions from elevator ride [duplicate]
I like to play inside the lift (elevator). For instance, there are bars attached at the side of the lift, and I like to hold my body up using my two hands on the bar. I realised that I actually feel ...
1
vote
6
answers
9k
views
Why Gravity attracts all objects with the same speed?
Why Gravity attracts all objects with the same speed? Is this question was solved? What is the exact answer?
- 27
2
votes
2
answers
3k
views
Accelerating elevator?
If your in an elevator accelerating downwards faster than gravity, would you be pushed up to the ceiling? Since gravity cannot match the acceleration of the elevator, you're wouldn't be able to move ...
user8791
25
votes
8
answers
29k
views
Would it help if you jump inside a free falling elevator?
Imagine you're trapped inside a free falling elevator. Would you decrease your impact impulse by jumping during the fall? When?
user145