Re: OT: Jupiter Probe

Wolfgang wrote:
"rw" <rw56_to_the_chase@xxxxxxxxxxxxx> wrote in message news:2u8_h.7572$j63.5748@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

BJ Conner wrote:

On May 2, 1:58 pm, rw <rw56_to_the_ch...@xxxxxxxxxxxxx> wrote:


Peter A. Collin wrote:


I think I get it - The craft is travelling the same speed before and
after being influenced by Jupiter's gravity, but is travelling faster
while being influenced. Thereby making its outward trip take less time.

What is happening is that the spacecraft is "stealing" momentum from the
planet. Not to worry -- Jupiter has plenty of momentum to spare.

--
Cut "to the chase" for my email address.


It changes velocity. Velocity is a vector quanity that has both
speed and direction.

As is momentum -- mv, mass times velocity.

Momentum is conserved. Jupiter loses some and the spacecraft gains an equal amount.


Speed is a scalar quanity.

Non sequitur.


The craft accelerates......which you may or may not have managed to comprehend once BJ pointed it out.

Why don't you go back and sit at the children's table.

Since the spacecraft's momentum increases (while its mass stays the same, neglecting relativistic effects), it obviously accelerates. Duh!

--
Cut "to the chase" for my email address.
.

Relevant Pages

  • Re: OT: Jupiter Probe
    ... Not to worry -- Jupiter has plenty of momentum to spare. ... Cut "to the chase" for my email address. ... It changes velocity. ... Jupiter loses some and the spacecraft gains an equal amount. ...
    (rec.outdoors.fishing.fly)
  • NASCAR-CUP: Indianapolis: Johnson - Firday media visit
    ... media and discussed racing at Indianapolis, the prestige of this race ... WHAT DID THAT DO FOR YOUR MOMENTUM FOR THE REST OF THE YEAR? ... boosting the momentum that was there and carrying us on. ... Chase now, got off to a slow start, I keep forgetting that part of it but ...
    (rec.autos.sport.info)
  • NASCAR-CUP: Bristol II: Winning team interview, part 2
    ... If we do make the chase and we do get to ... like in my heart that we weren't gonna run for a championship anyway. ... note and I do think momentum does carry for a while. ... enough to be a threat. ...
    (rec.autos.sport.info)
  • Re: OT: Jupiter Probe
    ... Not to worry -- Jupiter has plenty of momentum to spare. ... Velocity is a vector quanity that has both ... Jupiter loses some and the spacecraft gains an ...
    (rec.outdoors.fishing.fly)
  • Re: Apollo 13 - most difficult resue mission
    ... mathematics in supporting your statements about NASA "stealing" momentum ... from Jupiter. ...
    (sci.space.history)