A meteor has a speed of 83.0 m/s when 811 km above the Earth. It is falling vertically (ignore air resistance) and strikes a bed of sand in which it is brought to rest in 3.31 m. What is its speed just before striking the sand?(adsbygoogle = window.adsbygoogle || []).push({});

So here is the formula that I have but it doesn't give me the right answer.

v=square root of (Vi^2 + 2G(Mass of the Earth)/(Radius of the Earth*1-1/3.31)

I get 9337.6 m/s.

Does anyone see where my mistake is?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Meteor problem

**Physics Forums | Science Articles, Homework Help, Discussion**