Question
Asked Nov 12, 2019
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A 34.7 kg child rides a 5.30 kg toboggan down a 13.1 m high snowy hill. If the child starts from rest and has a speed of 6.70 m/s at the bottom of the hill, what is the change in thermal energy of the child on their toboggan and the snow?

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Expert Answer

Step 1

Given,

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Mass of chikl, M =34.7 Kg Mass of toboggan,m Initially at rest,u=0 5.30Kg Velocity at bottom,v 6.70m /s

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Step 2

When child starts from rest and achieve velocity at bottom then total change in kinetic energy is becomes equal to change in thermal energy of child with toboggan. Change in thermal energy is calculated as,

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Change in Thermal Energy Change in Kinetic Energy Change in Thermal Energy (M+m)v-;(M+m)u'

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Step 3

By substituting the ...

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