# Vertical motion

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#1
A balloon of total mass 680 kg is descending with a constant acceleration of 0.4 m/s². Find the upthrust acting on the balloon. When the balloon is moving at 1.5 m/s, enough ballast is released for the balloon to fall a deceleration of 0.2 m/s². Calculate

a. How much ballast was released

b. The time for which the balloon continues to fall before it begins to rise.
0
1 month ago
#2
(Original post by agbotse.joana)
A balloon of total mass 680 kg is descending with a constant acceleration of 0.4 m/s². Find the upthrust acting on the balloon. When the balloon is moving at 1.5 m/s, enough ballast is released for the balloon to fall a deceleration of 0.2 m/s². Calculate

a. How much ballast was released

b. The time for which the balloon continues to fall before it begins to rise.
check this:

https://www.thestudentroom.co.uk/sho...d.php?t=344077

Hope it helps
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#3
(Original post by kittyfifi123456)
check this:

https://www.thestudentroom.co.uk/sho...d.php?t=344077

Hope it helps
I already checked that site but it was a bit confusing an somehow it was in a different structure compared to the one I just posted.
0
1 month ago
#4
(Original post by agbotse.joana)
A balloon of total mass 680 kg is descending with a constant acceleration of 0.4 m/s². Find the upthrust acting on the balloon. When the balloon is moving at 1.5 m/s, enough ballast is released for the balloon to fall a deceleration of 0.2 m/s². Calculate

a. How much ballast was released

b. The time for which the balloon continues to fall before it begins to rise.

0
1 month ago
#5
(Original post by agbotse.joana)
I already checked that site but it was a bit confusing an somehow it was in a different structure compared to the one I just posted.
What is confusing.

What is the difference between your question and the question on the other webpage?
Mass value?
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