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0 votes
1 answer
95 views

For an airplane moving north from some latitude (say $30^{\circ}N$), why does rotation of the Earth cause an increase in apparent drag?

I'm not able to understand the answer to this example: Example 10 from the Curtis Orbital Mechanics text book : An airplane of mass $70 000\ \mathrm{ kg}$ is traveling due north at latitude $30^\circ$...
supersonic's user avatar
3 votes
2 answers
279 views

Can we use relative motion if acceleration of two bodies are different?

Suppose, on the $x$-axis, a body $A$ is moving with velocity $v_1$ and acceleration $a_1$, and a second body $B$ is moving with velocity $v_2$ and acceleration $a_2$. $B$ is at a distance of $S$ from $...
Pandey Shourya Prasad's user avatar
1 vote
3 answers
191 views

If there was but one object in the universe, can it be accelerating or not accelerating?

If there is only a single (material) object in the universe does it still make sense to speak of it as accelerating or not accelerating? I believe it might be an equivalent question to ask whether it ...
user avatar
1 vote
6 answers
379 views

How can a particle which is not moving have an acceleration?

Suppose a rod is rotating around a fixed point located at an extreme point of it and there are two points on it. One, somewhere in the middle and the other at the other extreme.Call them $A$ and $B$ ...
Aaryan Dewan's user avatar
  • 1,770
0 votes
2 answers
1k views

One dimensional motion - Why does a ball fall back in my hands when I throw it up in a moving bus? [duplicate]

Suppose you are moving in a bus and you throw a ball upwards. Why does it always land in your hand and does not fall behind you? The bus is moving with a uniform velocity in a straight direction. Now ...
Some Name's user avatar
  • 125
1 vote
2 answers
406 views

What is the relative acceleration of a projectile fired at in a low gravity vacuum?

This question is to end an old argument. Given a (space) vehicle with an acceleration of X, and projectile with an acceleration of 2X (rocket, not bullet), what would the relative acceleration of the ...
Tritium21's user avatar
  • 113