How Long Does it Take An Object To Fall 5 m From Rest?

  • Thread starter Thread starter hudsonnkh
  • Start date Start date
  • Tags Tags
    Fall Rest
Click For Summary
To calculate the time it takes for an object to fall 5 meters from rest with a gravitational acceleration of 10 m/s², the equation Y = Yo + Vot + 1/2at² can be used. Given that the initial velocity (Vo) is 0, the equation simplifies to Y = 1/2at². Substituting the values, 5 m = 1/2(10 m/s²)t² leads to t² = 1, resulting in t = 1 second. Therefore, it takes 1 second for the object to fall 5 meters from rest. This calculation demonstrates the relationship between distance, acceleration, and time in free fall scenarios.
hudsonnkh
Messages
1
Reaction score
0

Homework Statement


How Long Does it Take An Object To Fall 5 m From Rest? (g=10 m/s^2)


Homework Equations


None


The Attempt at a Solution


I have no idea.
 
Physics news on Phys.org
Y = Yo + Vot +1/2at^2

Everything is given to you in the question.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

Similar threads

  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 21 ·
Replies
21
Views
2K
  • · Replies 7 ·
Replies
7
Views
1K
  • · Replies 38 ·
2
Replies
38
Views
4K
  • · Replies 28 ·
Replies
28
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
13
Views
2K
Replies
13
Views
2K
Replies
13
Views
5K