What Is the Speed of a Package Dropped from an Ascending Helicopter?

AI Thread Summary
The discussion revolves around calculating the speed of a package dropped from an ascending helicopter, where the initial speed is denoted as V_i and gravity as g. The correct formula for the speed of the package is suggested to be |V| = |V_i - gt| or |V| = |gt - V_i|, emphasizing the importance of using magnitude bars. The user expresses frustration with the homework platform, indicating that their attempts to input the correct formula have been unsuccessful. Despite trying various formulations, they feel the website may be the issue, leading to a sense of resignation about their homework chances. The conversation highlights the challenges of applying physics equations in an online learning environment.
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Homework Statement



A package is dropped at time t = 0 from a helicopter that is ascending steadily at a speed vi.
What is the speed of the package in terms of V_{i}, g, and t?

Homework Equations



V (t) = V_{o} + -9.8 t


The Attempt at a Solution



I thought it was the same as the normal equation for velocity such as stated above but with the different variables substituted for example:

|V| = V_{i} + gt

except i got the answer wrong, then i tried putting a negative sign on the v_{i} part but still got it wrong...help would be greatly appreciated.
 
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You are close. Speed is |v(t)|. Try putting the magnitude bars around your expression for v(t).
 
the magnitude bars are already there on the online hw, only the stuff to the right of the "=" sign is what I'm able to input...nvm i see what your saying...but there was another part of the question in which the plane was descending and asked the same question and i got it right without putting the '|' around v(t)
 
Last edited:
Try

|V| = |Vi - gt|

or

|V| = |gt - Vi|
 
CWatters said:
Try

|V| = |Vi - gt|

or

|V| = |gt - Vi|

tried both but neither worked...i really think it is just the stupid website that i have to do the homework on but I'm all out of chances so doesn't matter now lol thanks for the suggestions though
 
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