(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 5.00g bullet moving at 600.0 m/s penetrates a tree trunk to a depth of 4.00 cm.

A) Use work and energy considerations to find the magnitude of the force that stops the bullet.

B) Assuming that the frictional force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment the bullet stops moving.

2. Relevant equations

Ek= 1/2mv^2

W=fdcos(0)

3. The attempt at a solution

I tried to do Ek=1/2mv^2

Ek= 1/2 x ( .005kg) x (600m/s)^2 but i think thats wrong

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# Homework Help: Energy and Work of a bullet

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