A person of mass 60 kg descends down a slide with a height

Last updated: 7/31/2022

A person of mass 60 kg descends down a slide with a height of 3.8 m. The person starts from rest and reaches the bottom with a speed of 3.11 m/s. How much thermal energy was generated due to friction? (In other words, how much work was done by friction. There are multiple ways this can be solved. I suggest using your general energy conservation equation.)