Question

A bullet is fired on to a wall with a velocity of 50m/s . If the bullet at the depth of 10cm inside the wall then find the retardation of produced by wall?

Answer 1

here u=50m/s. s=0.1m. let acceleration=a
v^2=u^2+2as
0=2500+2a(0.1)
0=2500+0.2a
0.2a=-2500
a=-12500m/s^2