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A 12.0-kg box is released from the top of an incline that is 5.00 m long...

A 12.0-kg box is released from the top of an incline that is 5.00 m long and makes an angle of 40.0o to the horizontal ground. A 60.0-N friction force is acted on the box to impede the motion of the box.

A) Draw a free body diagram to show all the forces acting on the box.

B) What would be the acceleration of the box?

C) How much force (in N) parallel to the slope of incline is required to accelerate the box upward at 1.2 m/s2.

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