A 21.0-kg child descends a slide 2.10 m high and reaches the bottom with a speed of 1.50 m/s .
\How much thermal energy due to friction was generated in this process?
\\
\
Mass of the child is 21.0 kg.
\Height from which the child decends is 2.10 m.
\Speed of the child is 1.50 m/sec.
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