A bullet from a gun is fired on a rectangular wooden block with velocity u. When bullet travels 24cm through the block along its length horizontally, velocity of bullet becomes 3u. Then it further penetrates into the block in the same direction before coming to rest exactly at the other end of the block. The total length of the block is :
Held on 30 Apr 2023 · Verified 9 Jul 2026.
30cm
27cm
24cm
28cm
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