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

Difference of weight question

  • #1

Homework Statement


Ned climbs to the peak of Mt. Everest, the tallest peak on Earth at 8850 m above sea level. Ned's mass is 95 kg, the mass of Earth is 5.98 x 1024 kg, and Earth's radius is 6.37 x 106 m. What is the difference in Ned's weight when comparing his weight at the top of the mountain to his weight at sea level?

Homework Equations


Fg = Gm1m2 / r2
g = Gm / r2
g = Fg / m

The Attempt at a Solution


I think I have the field strength equal to 9.80 N using the equation g = Gm / r2 . After that I'm lost, I have no idea how to get his weight at the top of the mountain!
 

Answers and Replies

  • #2
Sorry, mass of earth should be 5.98 x 1024kg and radius of earth should be 6.37 x 106m
 
  • #3
haruspex
Science Advisor
Homework Helper
Insights Author
Gold Member
32,726
5,031
I have no idea how to get his weight at the top of the mountain!
Same formula, but are all the variables in it the same value?
 

Related Threads on Difference of weight question

Replies
8
Views
2K
  • Last Post
Replies
1
Views
3K
Replies
7
Views
9K
  • Last Post
Replies
3
Views
2K
Replies
1
Views
1K
  • Last Post
Replies
5
Views
5K
  • Last Post
Replies
5
Views
1K
Replies
1
Views
2K
Replies
3
Views
515
Top