Question

A bullet hits a wall with a velocity of 20 m/sec and panetrates it up to a
distance of 5 cm. Find the deceleration of the bullet in the wall.
write on paper and then attach it​

Answer 1

Answer:

hope it helps u m8.....

Answer 2

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u= 20 m/s

v= 0

s = 5 cm = 0.05 m

from 3rd equation,

v² -u² = 2as

⇒0 - (20)² = 2×0.05×a

⇒0.1 a = - 400

⇒a = - 4000 m/s²

deceleration will be - 4000 m/s²