Questions 12-13
A person exerts a force F on a wagon. The force is directed 30° above the horizontal as shown
above. The weight of the wagon and its contents is W. There is negligible friction in the axles. The
wagon is moving on a smooth horizontal street.
12. Which of the following must be equal and opposite to the force F?
(A) W
(B)The horizontal component of F
(C)The force exerted on the person by the wagon
(D) The force exerted on the wagon by the street
(E)The force exerted on the wheels by the axles
13. The net or unbalanced force acting on the wagon is
(A) W
(B) The horizontal component of F
(C) The force exerted on the wagon by the person
(D) The force exerted on the wagon by the street
(E) The force exerted on the wheels by the axles
