4. A child with a mass, m, starts from rest, sleds down a hill from a height, ho. Determine the speed, Vf, of the child in terms of g and ho when he reaches the bottom of the hill if 10% of his initial energy is dissipated by friction. FINAL ENERGY INITIAL ENERGY PEGO KEF KE. WNC
4. A child with a mass, m, starts from rest, sleds down a hill from a height, ho. Determine the speed, Vf, of the child in terms of g and ho when he reaches the bottom of the hill if 10% of his initial energy is dissipated by friction. FINAL ENERGY INITIAL ENERGY PEGO KEF KE. WNC
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Please help me with the graph on the right too, if possible. And thank you!
Transcribed Image Text:4. A child with a mass, m, starts from rest, sleds down a hill from a height, ho. Determine the
speed, Vf, of the child in terms of g and ho when he reaches the bottom of the hill if 10% of
his initial energy is dissipated by friction.
FINAL ENERGY
INITIAL ENERGY
PEGO
KEF
KE.
WNC
Expert Solution
Step 1
The initial energy of the child is
Step 2
The final energy of the child is
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