Matter & Interactions 2nd ed. Practice Problems
Aaron Titus | High Point University
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(N)=# of solutions
1230002     Force on a box that is pushed in equilbirum across a floor.     1230002
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You push a 15-kg box across a somewhat smooth concrete floor as shown below.

Figure: A box being pushed across the floor.

You push with a force of 20 N at an angle, with respect to the horizontal, of . If the box moves in the +x direction with a constant speed, what is the force by the floor on the box? (Note: the gravitational force of Earth on the box is .)