Monday
October 20, 2014

Homework Help: Physical science

Posted by Anonymous on Monday, February 25, 2008 at 10:01am.

A 50 kg pole vaulter falls from rest from a height of 5 meters onto a foam rubber pad. The pole vaulter comes to rest 0.22 seconds after landing on the pad. Calculate the athlete's velocity just before reaching the pad. Answer in m/s.

I am so confused about which formula to use with this problem. I tried doing it like this, but I don't know if it's right:

final velocity= initial velocity+(gravity)x(time)
final velocity= 0m/s + (-10m/s)(0.22s)

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