• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Kinematics problem

1. Homework Statement
Humpty Dumpty had a great fall from a roof. It took him 2.25s to fall. How high was the roof?

2. Homework Equations


3. The Attempt at a Solution
 

ehild

Homework Helper
15,360
1,766
1. Homework Statement
Humpty Dumpty had a great fall from a roof. It took him 2.25s to fall. How high was the roof?

2. Homework Equations


3. The Attempt at a Solution
:welcome:

The policy here is that you have to show your attempt at a solution. How does Humpty-Dumpty move? with constant velocity? Or does he accelerate?
 
It seems like a case of free-fall.
u=0,a=g and t is given
Use the equation H=ut+1/2at2
But this is what I presume.There isn't any clear information about the motion of Humpty Dumpty.
 
Thanks, I got it.

I used H=ut+1/2at2

but it seemed I was inputting the wrong digit to the calculator
 

Want to reply to this thread?

"Kinematics problem" You must log in or register to reply here.

Related Threads for: Kinematics problem

  • Posted
Replies
2
Views
1K
  • Posted
Replies
15
Views
2K
  • Posted
Replies
1
Views
1K
  • Posted
Replies
2
Views
2K
  • Posted
Replies
1
Views
1K
  • Posted
Replies
7
Views
2K
  • Posted
Replies
2
Views
1K
  • Posted
Replies
5
Views
2K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top