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

question 55

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