- #1
NickyQT
- 2
- 0
1. Homework Statement
A bus passenger has her laptop sitting on the flat seat beside her as the bus, traveling at 10.0 m/s, goes around a turn with a radius of 25.0 m. What minimum coefficient of static friction is necessary to keep the laptop from sliding?
Given:
V = 10 m/s
r = 25.0 m
2. Homework Equations
Fc = mv ^ 2 / r
Ff = Us x Fn
3. The Attempt at a Solution
mv^2/r = Umg
U = v^2/gr
U = 10^2/9.6(25)
U = 100/245
U = 0.41 *rounded up
I think i got it right because i checked my lesson and this is the way they did it but i don't understand what is happening with the forces for me to get this solution, can someone please just clarify on what's actually happening and why this is what I'm supost to do (if it is infact correct).
Thank you - Nicky
A bus passenger has her laptop sitting on the flat seat beside her as the bus, traveling at 10.0 m/s, goes around a turn with a radius of 25.0 m. What minimum coefficient of static friction is necessary to keep the laptop from sliding?
Given:
V = 10 m/s
r = 25.0 m
2. Homework Equations
Fc = mv ^ 2 / r
Ff = Us x Fn
3. The Attempt at a Solution
mv^2/r = Umg
U = v^2/gr
U = 10^2/9.6(25)
U = 100/245
U = 0.41 *rounded up
I think i got it right because i checked my lesson and this is the way they did it but i don't understand what is happening with the forces for me to get this solution, can someone please just clarify on what's actually happening and why this is what I'm supost to do (if it is infact correct).
Thank you - Nicky