Question

A bullet can merely penetrate 1 wooden block. If its velocity is raised from
12m/s to 32m/s, how many similar blocks it can penetrate?

Answer 1

Let the uniform deceleration of bullet be a as final velocity

v=0,u=150,t=0.03 s

⇒v=u−−at⇒0=150−0.03

⇒a=0.03150=5000 m/sec2

& S=2av2−u2=−2(5000)−(150)2=100225=2.25 m

& F=ma=10×10−3×5×103

F=50 N

HOPE it helps you and mark me as a braienlist and follow me

Answer 2

Explanation:

answer is f=50n hope it's helps you