A `2kg` block slides on a horizontal floor with the a speed of `4m//s` it strikes a
Channel: Doubtnut
Date: 2020-07-05

A `2kg` block slides on a horizontal floor with the a speed of `4m//s` it strikes a uncompressed spring , and compresses it till the block is motionless . The kinetic friction force is compresses is `15 N` and spring constant is `10000 N//m` . The spring by