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Re: 400N P3D Rocket



Out of curiosity I tried this. But I don't get the same answer. Where am I
going wrong?

a = F/m = 400/115 = 3.478 m/s/s

v = 27.78 m/s [=100km/h]

t = v/a = 27.78/3.478 = 7.987 s

73 Howard G6LVB


----- Original Message -----
From: "Kenneth J. Ernandes" <n2wwd@mindspring.com>
To: "AMSAT BBS" <amsat-bb@AMSAT.Org>; "Gary "Joe" Mayfield"
<gary_mayfield@hotmail.com>
Sent: Wednesday, September 27, 2000 6:17 PM
Subject: Re: [amsat-bb] 400N P3D Rocket


> ----- Original Message -----
> From: Gary "Joe" Mayfield <gary_mayfield@hotmail.com>
> To: <amsat-bb@AMSAT.Org>
> Sent: Wednesday, September 27, 2000 12:13 PM
> Subject: Re: [amsat-bb] 400N P3D Rocket
>
>
>  ----- Original Message -----
>  From: "Ricardo Denis" <r_denis@globalnet.hn>
>  To: <amsat-bb@AMSAT.Org>
>  Sent: Wednesday, September 27, 2000 8:59 AM
>  Subject: [amsat-bb] 400N P3D Rocket
>
>
>  > hi all,
> >
> > whlie looking at the P3D pictures, i noticed the one of dick daniels
> > holding the 400 Newton rocket in his hands. it made we wonder just how
> much
> > power is 400N. to satisfy my curiosity i'd thought i'd ask so here goes:
> > between me and my bicycle we weigh 115 Kg. if i were to strap on the P3D
> > 400N rocket to my bicycle, how long would it take me to accelerate from
a
> > zero to 100 kilometers per hour (assume no friction and a level
surface)?
> > thanks in advance.
>
> Also assuming no air resistance, 4 seconds
>
> 73, Ken N2WWD
> n2wwd@amsat.org
> http://www.mindspring.com/~n2wwd
>
>
> ----
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> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>

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