Recent content by lynk

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    Funny email received with Physics PE problem

    Hello, I recently got a "joke" email with this problem in it. The student drew an elephant in the middle of the ramp & answered "b" with: No, there is an elephant in the way. It is relevant to my current studies, so I worked it out and would like to know if I am correct. Please see...
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    Find Displacement involving Coeff. Kin. Fr. & init. Velocity

    Wow...he did not teach us that (yet?), nor is it in the book I've read (so far). It looks like "Statics" are in chapter 9 of our book, but we're only on chapter 4? My guess would be 0? But that doesn't make any sense, because it would make "mu"F(norm) = 0? Is the static eq=1, then?? I...
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    Find Displacement involving Coeff. Kin. Fr. & init. Velocity

    Ok. Thank you for your quick response. ? I apologize. I still don't understand how to find accel, because I don't know the mass. Am I going with: .20F(norm)=ma? I'm absolutely & definitively stumped. Am I missing some other way to determine normal force or mass? Thank you, Lynn
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    Find Displacement involving Coeff. Kin. Fr. & init. Velocity

    Homework Statement A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.20 and the push imparts an initial speed of 4.0m/s^2? Homework Equations F(net)=ma will be used, but to find "a," we need the...
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