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Dynamics Problem? - reason for the cases described

  • #1
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Homework Statement


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Homework Equations




The Attempt at a Solution


i cant figure out the reasons for the statements. could you explain, along with th e physics involved.
also, (a) and b(i). you are welcome to explain the numerical parts too.
 

Answers and Replies

  • #2
SteamKing
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i cant figure out the reasons for the statements. could you explain, along with th e physics involved.
also, (a) and b(i). you are welcome to explain the numerical parts too.
Apparently, it's some sort of HW problem or exam. Where's the rest of it?
 
  • #3
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Apparently, it's some sort of HW problem or exam. Where's the rest of it?
it's an exam question from very old paper - not recent. that's all there is to the question. could you help with explaining the cases and reasons
 
  • #4
SteamKing
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it's an exam question from very old paper - not recent. that's all there is to the question. could you help with explaining the cases and reasons
To me, these questions seem self-explanatory. If you have a specific question about something which is unclear, I'll try to help. But simply saying 'Explain this' is too vague.
 
  • #5
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To me, these questions seem self-explanatory. If you have a specific question about something which is unclear, I'll try to help. But simply saying 'Explain this' is too vague.
the 2 parts of (d). could you explain. like give the reason and what I should have known to arrive that the conclusion (reason)
 
  • #6
SteamKing
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the 2 parts of (d). could you explain. like give the reason and what I should have known to arrive that the conclusion (reason)
Well, what happens when you shoot something out of a gun? Study the details given in section (c) and ask yourself if it would be safe for a man inside the spacecraft to be shot out of a gun.

It takes a certain velocity to achieve orbit. By siting the gun on the equator, how does this help achieve that velocity? What does the earth do all day?
 
  • #7
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Well, what happens when you shoot something out of a gun? Study the details given in section (c) and ask yourself if it would be safe for a man inside the spacecraft to be shot out of a gun.

It takes a certain velocity to achieve orbit. By siting the gun on the equator, how does this help achieve that velocity? What does the earth do all day?
thanks a lot. but sorry, i still can't figure it out

could someone else plz help
 
  • #8
haruspex
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thanks a lot. but sorry, i still can't figure it out

could someone else plz help
(d)(i) Think about forces.
(d)(ii) The sun does not go around the earth each day, right?
 

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