- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 1 (310.22 KiB) Viewed 39 times
- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 2 (242.32 KiB) Viewed 39 times
- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 3 (224.28 KiB) Viewed 39 times
- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 4 (261.98 KiB) Viewed 39 times
- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 5 (246.74 KiB) Viewed 39 times
- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 6 (526.64 KiB) Viewed 39 times
- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 7 (479.68 KiB) Viewed 39 times
- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 8 (520.53 KiB) Viewed 39 times
- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 9 (535.88 KiB) Viewed 39 times
- When Two Surfaces Slide Against Each Other There Is Always A Force That Each Object Exerts On The Other Called Th 47 10 (492.64 KiB) Viewed 39 times
When two surfaces slide against each other, there is always a force that each object exerts on the other called the [ *] The direction of this force 99 is perpendicular to the surface and pushes into the object. is perpendicular to the surface and points away from the object. is parallel to the surface and opposite the direction the object slides relative to the other surface. is parallel to the surface and in the same direction the object slides relative to the other surface. is parallel to the surface and exactly enough to prevent the object from sliding relative to the other.
The gravitational force that the Earth exerts on an object is called the normal force The direction of this force [*] perpendicular to the surface the object sits on and pushes into the object. perpendicular to the surface the object sits on and points away from the object. always down, toward the center of the Earth. always up, away from the center of the Earth.
When two surfaces do not slide against each other, there may be a force that each object exerts on the other called the 2] tension weight mass This direction of this force is [$ kinetic friction force static friction force
When two surfaces do not slide against each other, there may be a force that each object exerts on the other called the *1 This direction of this force [ *] perpendicular to the surface and pushes into the object. perpendicular to the surface and points away from the object. parallel to the surface and exactly enough to prevent the object from sliding. always down toward the center of the Earth.
106 13 A box sits on a table without moving. Choose all statements that are true according to Newtons 3rd law. The weight and the gravitational force that the box exerts on the Earth (pulling the Earth slightly upwards toward the box) form an action-reaction pair. The weight and normal force form an action-reaction pair since the normal force is the same magnitude and opposite the direction of the weight in this particular instance. The weight and normal force do not form an action-reaction pair since the two forces in an action-reaction pair must be of the same type, i.e., both gravitational or both normal forces. There is no action reaction pair for the weight. The action reaction pair for the normal force the table exerts on the box is the normal force that the box exerts on the table. 1
07 15 An object moves with a constant speed in a straight line. Which statement must be true according to Newton's first law? There are no forces acting on the object. There must be a force on the object that causes it to continue to move forward. The vector sum of the forces acting on the object is zero. The object will slow down by itself unless there is a net force acting on it.
18 130 A stone of mass M has an acceleration. Which must be true according to Newton's 2nd law? The vector sum of the forces acting on the stone must be equal to the stone's mass times its acceleration. There is a force acting on the stone that is equal to the stone's mass times its acceleration The sum of the magnitudes of the forces acting on the stone is equal to the stone's mass times its acceleration, The stone must be getting faster. The stone must be getting slower.
D 009 19 Ann stands in an elevator. The elevator is going down and moving faster as it goes. Which statement is true regarding Ann's weight and the normal force the elevator floor exerts on Ann? Suggestion: Draw a free body diagram. Which force, the weight or the normal force, must be larger in order to have the correct direction for the acceleration? The normal force is always equal to her weight. The normal force must be larger than her weight since her acceleration is up. The normal force must be smaller than her weight since her acceleration is down. The normal force must be smaller than her weight since her acceleration is up. The normal force must be larger than her weight since her acceleration is down. The normal force is zero since her velocity is down.
10 10 14 Lebron James (a large basketball player) with a mass of 120 kg runs into Isaiah! Thomas (a small basketball player) with a mass of 80 kg. Lebron pushes on Isaiah Thomas with a force of 300 Newtons (about 65 pounds). What is the force that Isaiah Thomas pushes on Lebron James? 200 N 133 N 300 N 450 N 675 N zero