Question

A bullet is fired through a wall that is 10.0 cm. thick. The bullet entered the wall at 400. m/s, and it exited from the wall at 220. m/s. What was the average acceleration of the bullet while it was passing through the wall?

Answer 1

a=(v1²-v2²)2d= (440²-220²)/0.2= …

Answer 2

a=(V2^2-V1^2)/2d