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

Henry gets into an elevator on the 50th floor

  • Thread starter p14r
  • Start date
  • #1
4
0
Henry gets into an elevator on the 50th floor of a building and it begins moving at t=0.00 s. His apparent weight is shown over the next 36.0s


What is Henry's mass if his maximum apparent weight within the elevator is 900.0N?

so shouldn't it just be:
w = mg
m = w/g
= 900/9.8
= 91.84 kg

but I keep getting the answer wrong.
 

Attachments

Answers and Replies

  • #2
gneill
Mentor
20,792
2,770
Can you identify on your graph where the maximum apparent weight occurs? How about his minimum apparent weight?

attachment.php?attachmentid=62357&stc=1&d=1380638363.gif


What do you suppose is happening with the motion of the elevator to cause these readings? Where would you expect to see his normal apparent weight?
 

Attachments

Related Threads on Henry gets into an elevator on the 50th floor

Replies
1
Views
3K
Replies
1
Views
4K
Replies
3
Views
1K
Replies
18
Views
1K
Replies
1
Views
2K
  • Last Post
Replies
5
Views
9K
  • Last Post
Replies
2
Views
11K
  • Last Post
Replies
5
Views
6K
Replies
4
Views
3K
Top