Hotair Ballooning
February 16th, 2010 | 
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Hotair Ballooning
A hotair balloonist, rising vertically with a constant speed of 5 m/s releases...?
releases a sandbag at the instant the balloon is 40.0 above the ground. After it is released, the sandbag encounters no appreciable air drag.
Compute the position (height above the ground) of the sandbag at 0.262 after its release?
Compute the component of the velocity of the sandbag at 0.262 after its release?
Compute the component of the velocity of the sandbag at 1.10 after its release.
How many seconds after its release will the bag strike the ground?
How fast is it moving as it strikes the ground?
What is the greatest height above the ground that the sandbag reaches?
1. here, u= -5, g=9.81, t=.262
s= ut + (1/2) gt^2
= -5*.262 + .5*9.81*.262^2
= -.9733
height of sandbag above ground at .262s is 40+.9733=40.9733 m
2. here, u =-5, t=.262, g=9.81, v=?
v=u+gt
= -5+9.81*.262
= -2.42978 m/s
velocity of sandbag at .262 s after release is 2.42978 m/s upwards.
3. t=1.1 s
v=u+gt
= -5 + 9.81*1.10
= 5.791
velocity of sandbag at 1.10 s after release is 5.791 m/s downwards.
4. u=-5, h=40, g=9.81, t=?
h= ut + .5 gt^2
40= -5t + .5*9.81 t^2
4.905t^2-5t-40=0
this quadratic equation gives two solutions t=3.41 and -2.39
accepting only positive value, t=3.41 s
5. u=-5, t=3.41s, g=9.81, v=?
v=u+gt
=-5 + 9.81*3.41
=28.4521
at the moment it strikes ground, v=28.4521 m/s
6. u=5, v=0, g=-9.81, h=?(in this case upward being positive)
v^2 = u^2 + 2gh
0=5^2 - 2*9.81*h
h=1.274m
greatest height above ground 40+h=41.274m
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Hot Air Ballooning in Albuquerque, NM
who invented the first hotair balloon?
i NEED 2 know this 4 my project!!!!!
i need 2 know this 4 my project! ....that is due in like....40mins!!! pleese answer me!
Joseph and Etienne Montgolfier invented the first hot air balloon in 1783 although at the time, they thought it was the noxious smoke from fire that caused the lift. These early hot air balloons were very impractical and gave way to gas balloons. They disappeared from the scene until 1960. The first modern hot air balloon, like those you see flying now, was created by Ed Yost in 1960.
If you didn't choose to procrastinate (it is a choice), you could have included this information.
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Jerry & Cherry,
It has been great to see your family grow through the years. Such awesome family pictures! Thanks for sharing. I am looking forward to this kind of fun with my 5 grandchildren. One dream is to take them hotair ballooning in Europe with Buddy Bombard. I will do that and send you the pictures:) Looking forward to seeing you at FEC in Charlotte! Thanks for being who you are and leading the way!!
Love ya,
Marcy
Jerry & Cherry,
It has been great to see your family grow through the years. Such awesome family pictures! Thanks for sharing. I am looking forward to this kind of fun with my 5 grandchildren. One dream is to take them hotair ballooning in Europe with Buddy Bombard. I will do that and send you the pictures:) Looking forward to seeing you at FEC in Charlotte! Thanks for being who you are and leading the way!!
Love ya,
Marcy
Jerry & Cherry,
It has been great to see your family grow through the years. Such awesome family pictures! Thanks for sharing. I am looking forward to this kind of fun with my 5 grandchildren. One dream is to take them hotair ballooning in Europe with Buddy Bombard. I will do that and send you the pictures:) Looking forward to seeing you at FEC in Charlotte! Thanks for being who you are and leading the way!!
Love ya,
Marcy
“Where most colleges saw degrees, he saw a hodgepodge of classes and incoherent goals.”
"definitely about just forgetting your problems and enjoying your time with people who are important to you. (you made my frown turn upside down and now my worries are gone)."