A bullet is fired into a wall with a velocity of 50 M per second. If the Bullet stops at the depth of 10 cm inside the wall find find the retardation provided by the wall
Initial velocity u = 50 m/s
Final velocity v = 0
Distance s = 10 cm
= 0.1 m
We know that,
v² = u² + 2as
a = -u² / 2s
a = -2500 / (0.2)
a = -12500 m/s²
So, retardation = 12500 m/s²