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yes her finger is the (act)i(on) the movement of the elevator is a re(act)i(on) (con)firm(in)g the (quest)i(on)ed (for)ce
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When you stand on a bathroom scale it displays the blank the earth is exerting on you?
The force.
How is the force you apply by pushing on a rock different from the force of gravity on the rock?
Pushing requires energy
A rock is stuck deep in dirt when you pull on the rock to remove it what type of force are you exerting?
Tension
Why do you feel heavier when you go up in an elevator?
Remember, the force of gravity on you is pretty much constant and unchanging. However, the degree to which you 'feel' it depends on whether or not something is pushing back up at you, to balance/resist your weight. If we assume that the elevator is going at a constant speed, then we know that the net force on your body must be zero, since you are not accelerating. Therefore the elevator is still supplying an upward force to resist your weight, and you will still feel heavy. You will only feel lighter if the lift is allowed to accelerate downwards. We can justify all this with equations. If R is the force pushing up against your feet (which makes you feel heavy) then acceleration (a) = (mg - R) / m Rearranging: R = mg - ma Dividing through by mg gives an expression for the proportion of ordinary weight felt: R/mg = 1 - a/g
The force pushing on a surface or area?
Pressure
Give four examples of a force being exerted?
Five different examples of pushing forces: 1. Pushing a box across the room 2. Sliding a drink down a bar 3. "Pushing" the computer mouse across the mousepad 4. A center pushing a defensive lineman down the field 5. Pushing a car that is in neutral
What are the two forces acting on a person as they move up and down in an elevator and when are these two forces equal and when are they not equal?
When the elevator is still the force of gravity due to your weight pressing downwards on the floor is equalled exactly by the floor pushing you upwards with the same force. When the elevator rises you feel a little heavier, and the elevator is pushing upwards with the same increased force. When the elevator descends you feel that you lose a little weight, and the floor pushes up at you with the equally reduced force, so you descend.
If your weight is 140 pounds what size force do you feel pushing back on your feet as you stand on the floor?
This involves Newton's third law of motion; for every force there is an equal and opposite force. If your weight is 140 lbs, then you're exerting 140lbs of force on the floor. In response, the floor is exerting 140lbs of force on you.
In what activities are you doing work in its scientific meaning A sitting still on a rock B pushing against a rock but not moving it C pushing the rock over a cliff?
In activity B, where you are pushing against a rock but not moving it, work is being done in its scientific meaning as the force you apply results in a displacement over time, even though the rock doesn't move. In activities A and C, no work is being done because there is either no displacement in the case of sitting still on a rock (A) or no force causing a displacement in the case of pushing a rock over a cliff (C).
What are examples of balanced force and unbalanced force?
Examples: Balanced: Two kids are playing tug of war. They are both exerting 4 Newtons of force. (Balanced forces=0 Newtons) Unbalanced: Two kids are playing tug of war. One kid is exerting 6 Newtons of force, the other is exerting 7 Newtons of force. (Unbalanced forces=1 or more Newtons difference[7N-6N=1N) Just because the forces are balanced, doesn't mean that they have to be less than the unbalanced forces. N=Newton
A boy pushing horizontally on a large heavy table why is it that the table does not move?
The mass of the object (force of gravity) and the frictional force of moving the table are greater than the horizontal force that the boy is exerting on the table... so it won't move
Is riding a bike newtons seond law?
yes it can. the reason why is the force the wheels are exerting is pushing them foeward. ok that sucked look read a book dont check internet
When does a train's brakes start exerting force on the train's wheels?
Assuming that the brakes are not "dragging" they start exerting force on the wheels when they are applied by the engineer.
When you pull a wagon you are exerting a what on the wagon?
force
When you pull a wagon you are exerting what on the wagon?
force
Identify the action reaction force pair involved when you catch a ball?
The action is throwing the ball up in the air and the reaction is catching it in your hands. Further, the action caused the reaction to occur; forces acted in pairs.
What is the force on an object by a fluid when the fluid is not moving?
If the object is floating on the surface of the fluid, like a boat, then the fluid is exerting the normal force on the object. The normal force is a force that is equal and opposite to the force of gravity acting on an object. If the object is under the water then the weight of the water above the object is pushing down on it.
