(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An object takes 12.3 meters to stop because of friction. Assume no skidding. If the coefficient of static friction is 0.5, what is the initial velocity of the object?

2. The attempt at a solution

My teacher said that in this task the mass doesn't matter, so we would have

##F_{net}=ma##

##F-ug=a##

The object is on motion and we need to find v_{0}so we would have

##v_0^2=v_f^2-2ax##.

Now for this we need the acceleration, so

##a=F-ug##, I have the coefficient and the gravity, but no applying force, so how can I find the acceleration, and how will I find the v_{0}, If I have no acceleration?

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# Friction problem 3

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