Thanks for the response, fairly happy to hear that but unfortunately I'm not too sure what energy methods are? Sorry, I'm very new to learning physics.
1. A 0.0048kg pullet traveling with a speed of 200m/s penetrates a large wooden fence post. If the average resisting force exerted on the bullet was 4500N how far did the bullet penetrate.
2. F=ma?
3.
F = ma
F/m = a
4500/0.0048 = 937500? So there's a reverse acceleration of...