This is Yolanda's desk. What could Yolanda do to increase the amount of force needed to change the motion of the desk? Yolanda could remove objects to decrease the desk's mass, so she would need more force
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Yolanda could add objects to increase the desk's mass, so she would need more force.

Yolanda could decrease the amount of friction between the desk and floor.

Yolanda could remove objects to decrease the amount of friction between the desk and the floor.