SOLUTION: I am not understanding this problem... Using a potato launcher, a potato is launched upward in the air with an initial velocity of 9 meters per second. When will the potato be b

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Question 1159484: I am not understanding this problem...
Using a potato launcher, a potato is launched upward in the air with an initial velocity of 9 meters per second. When will the potato be back at the level of the launcher? Use d = rt - 5t^2
thank you
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20850)   (Show Source):
You can put this solution on YOUR website!

given: an initial velocity of meters per second
the potato be back at the level of the launcher when
...factor

solutions:
->disregard (it’s time before launching)
or

the potato will be back at the level of the launcher in seconds

Answer by ikleyn(52803)   (Show Source):
You can put this solution on YOUR website!
.

To see many similar solved problems of this kind, look into the lessons on a projectile thrown/shot/launched vertically up
    - Problem on a projectile moving vertically up and down
    - Problem on an arrow shot vertically upward
    - Problem on a ball thrown vertically up from the top of a tower
    - Problem on a toy rocket launched vertically up from a tall platform

Consider these lessons as your textbook, handbook, tutorials and (free of charge) home teacher.
Read them attentively and learn how to solve this type of problems once and for all.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this textbook under the topic "Projectiles launched/thrown and moving vertically up and dawn".

Save the link to this online textbook together with its description

Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson

to your archive and use it when it is needed.