Question

18. Which of the forces involved in dragging a heavy object on a smooth, horizontal
surface, have the same magnitude? (T) 512
(1. the horizontal applied force, ii. gravitational force, iii. reaction force in vertical
direction, iv. force of friction)
opposite​

Answer 1

Which of the forces involved in dragging a heavy object on a smooth, horizontal surface, have the same magnitude?

=> Force of Friction

Reason: Force of friction is any force that opposes the motion of an object due to the contact of the object with other bodies.