6. A child of mass 45 kg slides down a rough surface slide of length 6.1 m. The slide is inclined at 25°. The coefficient of kinetic friction between the child and the slide is u, = 0.20, The child starts at the top of the slide. Calculate the heat lost to thermal energy once the child reaches the bottom of the slide. Calculate the child's speed when she reaches the bottom of the slide.

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Chapter15: Thermodynamics
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6.
A child of mass 45 kg slides down a rough surface slide of length 6.1 m. The slide is
inclined at 25°. The coefficient of kinetic friction between the child and the slide is µ, = 0.20, The
child starts at the top of the slide.
Calculate the heat lost to thermal energy once the child reaches the bottom of the
slide.
Calculate the child's speed when she reaches the bottom of the slide.
Transcribed Image Text:6. A child of mass 45 kg slides down a rough surface slide of length 6.1 m. The slide is inclined at 25°. The coefficient of kinetic friction between the child and the slide is µ, = 0.20, The child starts at the top of the slide. Calculate the heat lost to thermal energy once the child reaches the bottom of the slide. Calculate the child's speed when she reaches the bottom of the slide.
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