Question

A bullet is fired into a wall with a velocity of 50 m/s. If the bullet stops at a depth of 10 cm
inside the wall, find the retardation provided by the wall.

Answer 1

I think the retardation is -125m/s^2 if it is right then comment me

Answer 2

distance= 10cm =0.01m
u= 50m/s
v=0m/s
t= distance/speed
t= 0.01/50
t=0.0002s
a= v-u/t
-50/0.0002
a=250000m/s^2
=2.5 × 10^5 m/s^2