Question

17. A bullet moving with a velocity of 165 m/s penetrates through a plank. The bullet has a
velocity of 143 m/s the moment it comes out of the plank.) The number of planks
through which it can penetrate before it comes to rest are
a. 4
b. 3
d. None
C.
2​

Answer 1

Answer:

I think it is option no. C.2

Answer 2

Answer:

A ) 4

Explanation:

this is right ans , but I'll not provide Details explanation because of its very long problem and very critical. so that's why .