A woman takes her dog Rover for a walk on a leash. To get the little pooch moving forward, she pulls on the leash with a force of 20.0 N at an angle of 37° above the horizontal. How much force is tending to lift Rover off the ground?


A. 20.0 N


B. 42.1 N


C. 12.0 N


D. 16.0 N

Respuesta :

Answer: option C: 12.0 N

The women pulls the dog with a force of 20 N at an angle of [tex]37^o[/tex] from the horizontal. we can write this in terms of components.

Horizontal component= [tex] 20 cos(37^o)=16 N [/tex]

Vertical component =[tex]20 sin(37^o)=12.0 N[/tex]

The horizontal component would tend to make the dog move forward.

On the other hand, the vertical component would tend lift it off the ground.

Hence, the correct option is C: 12.0 N.


Ver imagen ariston

16.0 N

i got it correct

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