Register to reply 
Sliding in Socks 
Share this thread: 
#1
Oct3107, 06:06 PM

P: 273

1. The problem statement, all variables and given/known data
Suppose that the coefficient of friction between your feet and the floor, while wearing socks, is 0.250. Knowing this, you decide to get a running start and then slide across the floor. If your speed is 3.00 m/s when you start to slide, what distance d will you slide before stopping? 3. The attempt at a solution We are given that coefficient of friction is .250 f = .250(n) I really don't know to go from here. We are given speed so, let me permit my brain to flow with the numbers :D K= .5mv^2 may apply .250mg = .5m(.250)^2 .250(9.8)m = .5m(.250)^2 2.45m = .003125m................and it ends there..so I just went the wrong way. Solution is 1.84m, but I want to learn how to do this problem. 


#2
Oct3107, 06:47 PM

P: 273

ok
I got that k1 = .5mvo^2 k2 = .5mv^2 f = umg W = F *s we know that f is a F so I could use that so W = fd = umgd Wtotal = k2k1 so I would think it would be safe to say taht k2k1 = umgd .5(mv^2)  .5(mvo^2) = umgd is this is all correct thusfar, how do I continue? 


#4
Oct3107, 06:56 PM

P: 273

Sliding in Socks
yep got it, at first, I was confused on what to do with the m, and realized that they are common factor and cancel out.



Register to reply 
Related Discussions  
Sphere: angle to begin sliding  Introductory Physics Homework  3  
Box sliding down an incline  Introductory Physics Homework  0  
Sliding ice  Introductory Physics Homework  4  
Black bin bag to store my washing  General Discussion  6  
Twin socks paradox  General Discussion  30 