Question

a bullet is fired on a wall with a velocity of 100 M second if the Bullet stops at a depth of the 10cm inside the wall then find the retardation produced by the walk

Answer 1

★★
հίί ʍαtε_______✯◡✯
.
.
.
.
_________________________
һєяє' ʏȏȗя ѧṅśwєя ʟȏȏҡıṅɢ ғȏя________
.
✯▶intial velocity of the bullet = 100 m/ s

▶bullet strike with wall and after 10cm moving in wall bullet will be rest .
i.e.final velocity = 0

then ,we can use kinematic equation,

${v}^{2} = {u}^{2} + 2as$

$o = {100}^{2} + 2a \times \frac{10}{100}$
(10cm = 10 / 100 m)

$- 1000 = ( \frac{20}{100} )a$
=》

$a \: = - 50000 \: m/ {s}^{2}$
hence , retardation produced by the walk is,

$- 50000m /{s}^{2}$

$hope \: it \: helps$

✪ BRAINLY✪

Answer 2

$hey$
Initial velocity of bullet = 100m/s
Bullet strike with wall and after 10cm moving in wall bullet will be rest .
e.g final velocity = 0

use kinematic equation ,
V² = u² + 2aS
0 = 100² + 2a× 10/100
[ 10 cm = 10/100 m ]

-10000 =( 20/100)× a

a = -50000 m/s²

hence,
Retardation produced by wall = -50000 m/s²

Hope it helps to you.