A 100-kg box is towed to move horizontally from rest by a constant force P=200 N. The kinetic friction is μk =0.1. The angle of the force P is θ=30° with respect to the horizontal direction.  The acceleration due to gravity is g=9.81 m/s2.    (2) Select the motion of equation along the vertical direction, where F is the friction force,  N is the normal force from the ground, and a is the acceleration.___________

Elements Of Electromagnetics
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A 100-kg box is towed to move horizontally from rest by a constant force P=200 N. The kinetic friction is μk =0.1. The angle of the force P is θ=30° with respect to the horizontal direction.  The acceleration due to gravity is g=9.81 m/s2

 

(2) Select the motion of equation along the vertical direction, where F is the friction force,  N is the normal force from the ground, and a is the acceleration.___________




 
 

  A.

Psin30°-mg+N=ma  

  B.

Psin30°-mg+N=0

  C.

Pcos30°-mg+N=ma  

  D.

Pcos30°-mg+N=0  

A 100-kg box is towed to move horizontally from rest by a constant force P-200 N. The
kinetic friction is μ =0.1. The angle of the force P is 0-30° with respect to the horizontal
direction. The acceleration due to gravity is g=9.81 m/s²
(2) Select the motion of equation along the vertical direction, where F is the friction force,
N is the normal force from the ground, and a is the acceleration.
A. Psin30°-mg+N=ma
B. Psin30°-mg+N=0
OC. Pcos30°-mg+N=ma
O D. Pcos30°-mg+N=0
Transcribed Image Text:A 100-kg box is towed to move horizontally from rest by a constant force P-200 N. The kinetic friction is μ =0.1. The angle of the force P is 0-30° with respect to the horizontal direction. The acceleration due to gravity is g=9.81 m/s² (2) Select the motion of equation along the vertical direction, where F is the friction force, N is the normal force from the ground, and a is the acceleration. A. Psin30°-mg+N=ma B. Psin30°-mg+N=0 OC. Pcos30°-mg+N=ma O D. Pcos30°-mg+N=0
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