1. A 5.0-newton force and a 7.0-newton force act ...

1 1. A force and a force act concurrently on a point. As the angle between the forces is increased from 0 to 180 , the magnitude of the resultant of the two forces changes from(1) N to N(3) N to N(2) N to N(4) N to N2. Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface?(1) (2) (3) (4) 3. Which pair of forces acting concurrently on an object will produce the resultant of greatest magnitude? (1) (3) (2) (4)4. Two concurrent forces have a maximum resultant of 45 Newtons and a minimum resultant of 5 Newtons.

2 What is the magnitude of each of these forces?(1) 0 N and 45 N(3) 20. N and 25 N(2) 5 N and 9 N(4) 0 N and 50. N5. If the force vector shown in the diagram above is resolved into two components, these two components could best be represented by which diagram below ? (1) (3) (2) (4)6. Note that the following question has only three force and an force act concurrently on a point. As the angle between these forces increases from 0 to 90 , the magnitude of their resultant(1) decreases(3) remains the same(2) increases7.

3 A constant force is exerted on a box as shown in the the angle decreases to 0 , the magnitude of the horizontal component of the force (1) decreases(3) remains the same(2) increases8. The diagram below represents a constant force F acting on a box located on a frictionless horizontal the angle between the force and the horizontal increases, the acceleration of the box will(1) decrease(3) remain the same(2) increase9. A boat heads directly eastward across a river at 12 meters per second. If the current in the river is flowing at meters per second due south, what is the magnitude of the boat's resultant velocity?

4 (1) m/s(3) 13 m/s(2) m/s(4) 17 m/s10. A force and a force act concurrently on a point. In which diagram below would the orientation of these forces produce the greatest net force on the point? (1) (3) (2) (4)11. Two perpendicular forces act on an object as shown in the diagram to the is the magnitude of the resultant force on the object?(1) 17 N(3) N(2) 13 N(4) N12. Two students push on a sled. One pushes with a force of 30. newtons east and the other exerts a force of 40. newtons south, as shown in the topview diagram vector best represents the resultant of these two forces?

5 (1) (3) (2) (4)13. Which combination of three concurrent forces acting on a body could not produce equilibrium?(1) 1 N, 3 N, 5 N(3) 3 N, 4 N, 5 N(2) 2 N, 2 N, 2 N(4) 4 N, 4 N, 5 N14. A river flows due east at meters per second. A motorboat leaves the north shore of the river and heads due south at meters per second, as shown in the diagram vector best represents the resultant velocity of the boat relative to the riverbank? (1) (3) (2) (4)15. As shown in the diagram below , a painter climbs meters up a vertical scaffold A to B and then walks meters from B to C along a level platformThe magnitude of the painter's total displacement while moving from A to C is(1) m(3) m(2) m(4) m16.

6 Forces F1 and F2 act concurrently on point P, as shown in the diagram equilibrant of F1 and F2 is(1) 14 N southwest(3) 20. N southwest(2) 14 N southeast(4) 20. N southeast17. Two forces (OA and OB) act simultaneously at point O as shown on the diagram to the magnitude of the resultant force is closest to(1) N(3) 15 N(2) 11 N(4) 16 N18. The diagram below shows a child pulling a friend on a sled by applying a force on the sled rope at an angle of 40. with the vertical component of the force is approximately(1) 510 N(2) 230 N(3) 190 N(4) 32 N19.

7 In the diagram below , a force , F, is applied to the handle of a lawnmower inclined at angle to the magnitude of the horizontal component of force F depends on(1) the magnitude of force F, only(2) the measure of angle , only(3) both the magnitude of force F and the measure of angle (4) neither the magnitude of force F nor the measure of angle 20. In the diagram below , a block rests on a ramp, making angle with the angle is increased, what will occur?(1) The block's mass will decrease.(2) The block's weight will increase.

8 (3) The block's component of weight parallel to the ramp will decrease.(4) The block's component of weight parallel to the ramp will A force of 100. Newtons is applied to an object at an angle of 30 from the horizontal as shown in the diagram below . What is the magnitude of the vertical component of this force ?(1) 0 N(3) N(2) N(4) 100. N22. The diagram below shows a mass held at rest on a frictionless incline by force is the approximate magnitude of force F?(1) N(3) N(2) N(4) N23. The diagram below shows a block on a horizontal frictionless surface.

9 A newton force acts on the block at an angle of 30. above the is the magnitude of force F if it establishes equilibrium?(1) N(3) 100. N(2) N(4) 187 N24. Two students are pushing a car. What should be the angle of each student s arms with respect to the flat ground to maximize the horizontal component of the force ?(1) 0 (3) 45 (2) 30 (4) 90 25. Into how many possible components can a single force be resolved?(1) an unlimited number(2) two components(3) three components(4) four components at right angles to each other26.

10 A resultant force of 10. Newtons is made up of two component forces acting at right angles to each other. If the magnitude of one of the components is Newtons, the magnitude of the other component must be(1) 16 N(3) N(2) N(4) 4 N27. A lawnmower is pushed with a constant force of F, as shown in the diagram below :As angle between the lawnmower handle and the horizontal increases, the horizontal component of F(1) decreases(3) remains the same(2) increases28. In the diagram below , the weight of a box on a plane inclined at 30.