- #1
kixtoby
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Misplaced homework moved here by moderator, hence no template.
I have been stuck on this physics question:
An object is sliding along a flat surface with an initial speed of 30 m/s. What must the coefficient of kinetic friction be between the object and the surface if the object slides to a stop in 10m? What would be the speed of the object after it had only slide half that distance?
So I know that uk = Fk/FN
and that Fd = 1/2mv(initial)^2
but for the life of me I cannot figure out how to solve this problem.
Any help at all would be extremely appreciated.
I have done this:
F(10m)=1/2(9.8m/s2)(30m/s)
F(10m)=147m/s
F=14.7m/s
Am I at least on the right track?
An object is sliding along a flat surface with an initial speed of 30 m/s. What must the coefficient of kinetic friction be between the object and the surface if the object slides to a stop in 10m? What would be the speed of the object after it had only slide half that distance?
So I know that uk = Fk/FN
and that Fd = 1/2mv(initial)^2
but for the life of me I cannot figure out how to solve this problem.
Any help at all would be extremely appreciated.
I have done this:
F(10m)=1/2(9.8m/s2)(30m/s)
F(10m)=147m/s
F=14.7m/s
Am I at least on the right track?
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