Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Physics, am i doing this right?
A pole vaulter clears a height of 6.00 m. With what velocity does the vaulter strike the mat in the landing area?
I just want to make sure I am doing this right
Givens:
h-6m
v-?
Work:
PE=KE
mgh=.5mv^2
m(9.8)(6)=5mv^2
58.8=.5v^2
58.5/.5=.5v^2/.5
117.6=v2
10.84m/s=v
1 Answer
- ?Lv 72 months ago
If you assume that the vaulter fell "from rest" (that is, with zero initial KE), then your math is sound. Some graders would take off, however, for too many significant digits. v = 10.8 m/s
