Question

A bullet hits a wall with a velocity of 20m/s and penetrates up-to a distance of 10cm,find the deceleration of the bullet

Answer 1

Answer:

-2000m/s^2

Explanation:

V^2=u^2+2as

20^2=0+2a×0.1

400÷0.2=a

2000=a

retardation in opposite