Oct 11th 2018, 12:12 PM
|
#2 |
Physics Team
Join Date: Jun 2010 Location: Morristown, NJ USA
Posts: 2,326
|
I get $F_f = \mu m g = 189 N$. Could it be that either (a) the mass is actually 200Kg, not 215 Kg, or (b) the mass is sliding on an incline, in which case the normal force would be $mg \cos \theta$ ?
|
| |