A mover is dragging a 70 kg box across the floor. The coefficient of kinetic friction between the floor is 0.13. (A) Calculate the force the mover exerts to drag the box across the floor at a constant rate of 1.02 m/s if he pulls horizontally. 89.18 N (B) Calculate the force the mover exerts to drag the box across the floor at a constant rate of 1.02 m/s2 if he pulls horizontally. 160.58 N 10 (C) Calculate the magnitude of the normal force exterted on the box if the mover pulls the box with twice the force from part (B) but pulls at an angle of 19 degrees above the horizontal. 581.44 N (D) If the mover pulls the box with twice the force from part (B) but pulls at an angle of 19 degrees above the horizontal, what is the acceleration of the box? (E) How hard must the mover pull to move the box with the same acceleration as part (D) if he pulls at an angle of 19 degrees below the horizontal? (F) What is the normal force exerted on the box when the mover pulls on the box with the force from part (E) at an angle of 19 degrees below the horizontal?

College Physics
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Chapter1: Units, Trigonometry. And Vectors
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A mover is dragging a 70 kg box across the floor. The coefficient of kinetic friction between the floor is 0.13.
(A) Calculate the force the mover exerts to drag the box across the floor at a constant rate of 1.02 m/s if he pulls horizontally.
89.18 N
(B) Calculate the force the mover exerts to drag the box across the floor at a constant rate of 1.02 m/s² if he pulls horizontally.
160.58 N
NO
(C) Calculate the magnitude of the normal force exterted on the box if the mover pulls the box with twice the force from part (B) but pulls at an angle of 19 degrees above the horizontal.
581.44 N
(D) If the mover pulls the box with twice the force from part (B) but pulls at an angle of 19 degrees above the horizontal, what is the acceleration of the box?
(E) How hard must the mover pull to move the box with the same acceleration as part (D) if he pulls at an angle of 19 degrees below the horizontal?
(F) What is the normal force exerted on the box when the mover pulls on the box with the force from part (E) at an angle of 19 degrees below the horizontal?
Transcribed Image Text:A mover is dragging a 70 kg box across the floor. The coefficient of kinetic friction between the floor is 0.13. (A) Calculate the force the mover exerts to drag the box across the floor at a constant rate of 1.02 m/s if he pulls horizontally. 89.18 N (B) Calculate the force the mover exerts to drag the box across the floor at a constant rate of 1.02 m/s² if he pulls horizontally. 160.58 N NO (C) Calculate the magnitude of the normal force exterted on the box if the mover pulls the box with twice the force from part (B) but pulls at an angle of 19 degrees above the horizontal. 581.44 N (D) If the mover pulls the box with twice the force from part (B) but pulls at an angle of 19 degrees above the horizontal, what is the acceleration of the box? (E) How hard must the mover pull to move the box with the same acceleration as part (D) if he pulls at an angle of 19 degrees below the horizontal? (F) What is the normal force exerted on the box when the mover pulls on the box with the force from part (E) at an angle of 19 degrees below the horizontal?
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