- 62

- 1

**Unknown Speed!!**

Hi all, I've got this problem in my physics class I can't figure it out. Iv'e changed the values because I only wan't to know How we can solve this..

Here it goes:

I have a 400 g (3,29 N) Meteor that crashed in the earth surface and reach a depth of 1.7 m . The scientist say that the ground had a resistance force of 1,0 x 10^6 N.

(We ignore the air's friction.)

What was the meteor's speed?

It's all I've got.

Iv'e done a graphic on paper whit vectors But I don't quite get the methos of doing it.

Else.. I tried Caluculating the potiential energy (Ep = mgh) but I don't have the height.. Neither de speed for the Kinetic energy (Ek = 1/2 m v^2)

Bah.. Help me out! :P:P