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A puck is sliding along a frictionless surface at constant
velocity. Which of the following choices correctly
models the forces acting on the puck?
a) F₍₉₉₉₎gravity = 0, Fₙₒᵣₘₐₗ = 0, Fₙₒᵣₘₐₗ = 0
b) F₍₉₉₉₎gravity = 0, Fₙₒᵣₘₐₗ = 0, Fₙₒᵣₘₐₗ = constant
c) F₍₉₉₉₎gravity= 0, Fₙₒᵣₘₐₗ = constant, Fₙₒᵣₘₐₗ = 0
d) F₍₉₉₉₎gravity = constant, Fₙₒᵣₘₐₗ = 0, Fₙₒᵣₘₐₗ = 0



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