A 250-Kg Crate Is on a Rough Ramp, Inclined at 30°

Multiple Choice

A 250-kg crate is on a rough ramp, inclined at 30° above the horizontal. The coefficient of kinetic friction between the crate and ramp is 0.22. A horizontal force of 5000 N is applied to the crate, pushing it up the ramp. What is the acceleration of the crate?

A) 8.4 m/s²
B) 10 m/s²
C) 12 m/s²
D) 13 m/s²
E) 3.4 m/s²