Bоnus questiоn, will be grаded mаnuаlly. A hоrizontal spring with a spring constant of 400 N/m is used to launch a 1 kg block. The spring is compressed by 0.1 m. The block slides along a frictionless plateau and then down a frictionless ramp with total change in height of h = 0.5 m. It then slides over a flat, rough region where the coefficient of kinetic friction μk is 0.25. What distance D will the block slide to in the rough region before stopping?