Fill in the Blanks
True or False
Choose one or more correct alternatives.
Which of the forces involved in dragging a heavy object on a smooth, horizontal surface, have the same magnitude?
(i) the horizontal applied force
(ii) gravitational force
(iii) reaction force in vertical direction
(iv) force of friction
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Solution
The gravitational force and the reaction force in vertical direction have same magnitude. Friction is not action as the horizontal surface is smooth.
Concept: Free Fall
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