[ 1) A table exerts a 2.0-newton force on a book ly ing on the table. A lawnmower is pushed with a constant force , as shown in The force exerted by the book on the table is the diagram below. A) 2.0 N C) 20. N B) ON D) 0.20 N _2) Two perpendicular forces act on an object as shown in the diagram below. 5.0 N 12 N As angle 0 between the lawnmower handle and the horizontal increases, the horizontal component of F A) decreases What is the magnitude of the resultant force on the object? B) remains the same A) 5.0 N C) 13 N C) increases B) 7.0 N D) 17 N _ 3) A 100.-newton force acts on point P, as shown in the diagram Which pair of concurrent forces could produce a resultant force below. having a magnitude of 10. newtons? A) 4.7 N, 4.7 N C) 4.7 N. 5.ON B) 10. N, 10. N D) 10. N, 30. N 100. N 4 ) A force of 100. newtons is applied to an object at an angle of 30. 30' from the horizontal as shown in the diagram below. What is the magnitude of the vertical component of this force? HORIZONTAL The magnitude of the vertical component of this force is 100 N approximately .... 300 A) 87 N C) 30. N B) 71 N OBJECT D) 50. N _8) The diagram below represents a constant force F acting on a box A) 50.0 N C) ON located on a frictionless horizontal surface. B) 100. N D) 86.7 N _ 5) The handle of a lawn roller is held at 45 from the horizontal. A force, F, of 28.0 newtons is applied to the handle as the roller is pushed across a level lawn, as shown in the diagram below. HORIZONTAL As the angle 0 between the force and the horizontal increases, the acceleration of the box will 450 A) decrease B) remain the same C) increase The weight of an apple is closest to A) 10-2 N C) 100 N B) 104 N D) 102 N What is the magnitude of the force moving the roller forward? A) 7.00 N C) 19.8 N B) 39.0 N D) 14.0 NIn the diagram below, box M is on a frictionless table with 14) Which two graphs represent the motion of an object on which 10) the net force is zero? forces F] and F2 acting as shown. Distance Spe F24 M FRICTIONLESS TABLE Time Time Distance Speed B ime If the magnitude of F1 is greater than the magnitude of F2, then Speed Distance C the box is A) accelerating in the direction of F2 ime Time B) accelerating in the direction of F1 Distance Speed C) moving with a constant speed in the direction of F2 D) D) moving with a constant speed in the direction of F1 Time Time 11) As the angle between a force and level ground decreases from 15) The magnitude of the force that a baseball bat exerts on a ball is 60 to 30, the vertical component of the force 50. newtons. The magnitude of the force that the ball exerts on the bat is A) decreases 3) remains the same A) 250 N C) 5.ON C) increases B) 10. N D) 50. N 12) Four forces are acting on an object as shown in the diagram 16) A baseball bat moving at high velocity strikes a feather. If air below. If the object is moving with a constant velocity, the resistance is neglected, compared to the force exerted by the bat magnitude of force F must be on the feather, the force exerted by the feather on the bat will be A) the same 30 N B) larger C) smaller 17 In the diagram below, surface A of the wooden block has twice the area of surface B. If it takes F newtons to keep the block 40 N moving at a constant speed across the table when it slides on surface A, what force is needed to keep the block moving at constant speed when it slides on surface B? 30 N A) 100 N C ON B) 20 N D) 40 N 13) Which two quantities are measured in the same units? A) force and momentum B) mass and weight C) weight and force D) velocity and acceleration A) F C) 4F B) F D) 2F 18) A test booklet is sitting at rest on a desk. Compared to the force of the booklet on the desk, the force of the desk on the booklet is A) less B) greater C) the same 19 A cart is uniformly accelerating from rest. The net force acting on the cart is A) increasing ) constant 3) decreasing D) zero