Question

abullet is fired on a wall with a velocity of 100m/s if the bullet stops at the depth of 10 cm inside the wall then find the retardation produced by the wall

Answer 1

u = 100 m/s
v = 0
s = 10 cm = 10/100 m = 1/10 m
a = ?

2as = $v^{2} - u^{2}$
2*a*$\frac{1}{10}$ = $0^{2} - 100^{2}$
a = -10000 * $\frac{10}{2}$
a = -50000

retadation = -(acceleration)
Therefore, retardation produced = -(-50000) = 50000 m/$s^{2}$

Answer 2

Refers to attachment ♡♡~