Petra Pushes a Crate Across a Rough Floor

Multiple Choice

Petra pushes a crate across a rough floor.A frictional force of 28.0 N acts to oppose the motion of the crate,and Petra pushes with a horizontal force of 36.4 N.If the net work Petra does is 94.5 J,through what distance did she push the crate?

A) 11.3 m
B) 3.38 m
C) 2.60 m
D) 2 650 m
E) 3 440 m