Asked by nicki

A bullet is moving with speed of 500m/s. Hit the target and penetrate 100mm into the target. Find the retardation of the bullet.
Answered by Henry
V^2 = Vo^2 + 2a*d.

V = 0, Vo = 500 m/s, d = 0.10 m, a = ?.

"a" will be negative.