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
Answer: A
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