Calculating Drop Time from 105m in a Helicopter

Click For Summary

Homework Help Overview

The discussion revolves around a physics problem involving the calculation of drop time for a box released from a helicopter at a height of 105 meters. The helicopter is ascending at a speed of 5.50 m/s, and participants are exploring the implications of this speed on the drop time calculation.

Discussion Character

  • Exploratory, Assumption checking, Mathematical reasoning

Approaches and Questions Raised

  • Participants are attempting to identify the appropriate equations for motion under gravity and are questioning whether the initial speed of the helicopter applies to the box at the moment of release. There is also discussion about the initial and final positions and velocities in the context of the problem.

Discussion Status

The conversation is ongoing, with participants providing guidance on the relevant equations and clarifying the initial conditions. There is a mix of interpretations regarding the initial and final positions of the box, and some participants are confirming their understanding of the variables involved.

Contextual Notes

There is a focus on ensuring that the initial height and velocity are correctly identified, and participants are navigating the assumptions about the motion of the box after it is dropped. The problem context includes the effects of gravity and the initial upward velocity of the helicopter.

marsh
Messages
7
Reaction score
0
I need some help with a question please.
If a helicopter has a speed of 5.50m/s moving upward vertically and when at the height of 105m above Earth a box is dropped from the window how much time will it take to reach the ground?
 
Physics news on Phys.org
You need to show some work first, and let us know where you are getting stuck.
 
the problem is that i don't know what equation to use for this problem. Would the speed of the helicopter, 5.50m/s, be the speed of the package as well?
 
do i use xf=xi+vit+.5at^2 ?
 
x= xi+ vit+ (1/2)at2

where xi is the initial height, vi is the initial velocity and a is the acceleration due to gravity. Do you know what the initial height and velocity are for the package?

My answer to your question, which you posted while I was typing, is "yes"!
 
so the xi= om xf=105m and vi=5.50m/s vf= 0m/s a= 9.80m/s^2
 
is that correct?

or is the xf= 0m and xi=105m b/c it's being dropped from the top?
 
Last edited:

Similar threads

  • · Replies 10 ·
Replies
10
Views
1K
  • · Replies 7 ·
Replies
7
Views
3K
Replies
69
Views
12K
  • · Replies 5 ·
Replies
5
Views
6K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
13
Views
2K
Replies
7
Views
3K
  • · Replies 6 ·
Replies
6
Views
3K
Replies
6
Views
7K