FIGURE 5-5 -A 4.00-Kg Block Is Sliding Up the Plane on a Plane

FIGURE 5-5
-A 4.00-kg block is sliding up the plane on a 30.0 degree incline as shown in Fig. 5-5. If the coefficient of kinetic friction between the block and the incline is 0.700, what will be the acceleration of the block if a 50.0-N horizontal force pushes on the block?

A) 4.40 m/s² down the incline
B) 12.5 m/s² up the incline
C) 0.107 m/s² down the incline
D) 10.8 m/s² up the incline
E) 3.88 m/s² up the incline