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allie_bear22
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The height in meters of a projectile can be modeled by h = 4.9t^2 + vt + s where t is the time (in seconds) the object has been in the air, v is the initial velocity (in meters per seconds) and s is the initial height (in meters). A soccer ball is kicked upward from the ground and flies through the air with an initial vertical velocity of 4.9 meters per second. After how many seconds does it land approximately?
 one year ago
 one year ago
allie_bear22 Group Title
The height in meters of a projectile can be modeled by h = 4.9t^2 + vt + s where t is the time (in seconds) the object has been in the air, v is the initial velocity (in meters per seconds) and s is the initial height (in meters). A soccer ball is kicked upward from the ground and flies through the air with an initial vertical velocity of 4.9 meters per second. After how many seconds does it land approximately?
 one year ago
 one year ago

This Question is Closed

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
When it lands, what height does it have?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
Wrong way to phrase it... Let me rephrase.... How high is the ball when it lands?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
When it lands, is it 4.9 meters above the ground?
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
i have no idea
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
what do i have to do to get the answer?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
Start with that... find the height of the ball as soon as it lands. It just takes a little intuition and visualization :)
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
So... when the ball lands, it is 16 meters underground?
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
or no 16
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
16 means when the ball lands, it is 16 meters above the ground (in midair). Does that seem reasonable?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
Then... what is reasonable? When the ball lands, its height is...?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
What's f?
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
didnt mean to put tht srry
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
Well... you mean to tell me that when the ball *lands* it is 5 meters above the ground, then?
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
omg!! i really dont kno
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
Think... meditate... :P Now... how high is the ball when it LANDS... how many meters above the ground is the ball when it LANDS...
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
hmmm 0?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
Yes. Finally :P
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
yay!!!! that was easy lol
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
Of course, when the ball lands, it is on the ground. Thus, it is 0 meters above the ground.
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
0 is not the answer. .
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
that's just a stepping stone...
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
oh ok wat next?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
We need v and s. We already have v, the initial velocity, 4.9
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
What's the initial height (s) ?
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
4.9^2
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
Are you guessing? I strongly advise against it... it's too risky.
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
And no, the initial height is not \(\ 4.9^2\)
 one year ago

allie_bear22 Group TitleBest ResponseYou've already chosen the best response.0
ok thnx for your help ill do the rest by myself :) thnx
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.1
Are you sure? Well, if you're sure, post your answer here.
 one year ago
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