Objective physics
Level
pending
A bullet loses its 1/20 of its velocity when it's strikes a plank.How many least number of planks are required to stop the bullet.
The answer is 11.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
This question can be solved by formula