Homework Help: Physics

Posted by Mike on Tuesday, June 12, 2012 at 10:22pm.

A 13.0 kg box is released on a 33 degree incline and accelerates down the incline at o.20 m/s^2.

A. Find the friction force impeding it's motion

B. What is the coefficient of kinetic friction

Physics - Elena, Wednesday, June 13, 2012 at 4:31am
F(fr) = μ •N= μ•m• g• cos α

PE = W(fr) +KE,
m•g•h= μ•m• g• s cos α• +m•v²/2,
g•h= μ•g•s•cos α• + v²/2.

You need “h”
Physics - Anonymous, Thursday, July 26, 2012 at 8:50am
.njljlj

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