Basic Physics Question

  • #1
IF a man jumps off a building that is 90 m high, and gravity is 9.8 m/s, and he weighs 80 kg, then what will his velocity be just as he hits the ground?
 

Answers and Replies

  • #2
just use the equation

vf^2=vi^2 +2ax
vf^2=0+2(9.8)(90)
vf^2=1764
v=42 m/s

weight is irrelevant
 

Related Threads on Basic Physics Question

  • Last Post
Replies
7
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
1
Views
1K
Replies
5
Views
582
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
2
Views
4K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
2
Views
1K
Top