A block of mass of 10 kilograms is at sitting on frictionless surface that is connected to a relaxed spring constant 139 N/m. A speeding bullet of mass 0.04 kg hits the block and embeds into the block. Due to the impact, the spring gets compressed by 0.08 m. What was the speed of the bullet with which it hit the block? Limit your answer within one decimal place. M m M+m

A block of mass of 10 kilograms is at sitting on frictionless surface that is connected to a relaxed spring constant 139 N/m. A speeding bullet of mass 0.04 kg hits the block and embeds into the block. Due to the impact, the spring gets compressed by 0.08 m. What was the speed of the bullet with which it hit the block? Limit your answer within one decimal place. M m M+m