A force of 47 N acting through a distance of 0.25 m does (47 x 0.25) = 11.75 joules of work.
It doesn't matter what kind of object is being moved, or what other forces may be involved
in the operation.
Work is F x D (Force x Distance)
So all you have to do is multiply 47 by .26m.
The Answer comes out to be 12.22 Joules.
( I currently have this question on my Physics assignment right now as question 1 with the title Physics 11 - Work, Power, Energy Worksheet)
Just multiply the force times the distance. Result is in joules.
w=f.d cos 0
w=47x0.26x1=12.22J
12:3
12.22J
Ft
Outward Force: dirt pushing against retaining wallInward Force: atmospheric pressure, the retaining wall pushing against the dirtDownward Force: gravity, atmospheric pressure, the retaining wall pushing against the earth.Upward Force: The earth pushing against the retaining wall.
If you are behind a car, about to push it forward from a resting position, you will need to exert a force on the car to accelerate it from resting position. While you are pushing against the car, however, there will be a reaction force pushing back at you. In order to produce a large net force against the car without being pushed backward yourself, you need to increase the friction of your feet against the ground...so that the frictional force between your feet and the ground prevents you from sliding backward. The combinations of the frictional force and your force pushing forward against the car will cause the car to move forward. The frictional force of the car being moved from resting position also has to be overcome, of course.
Lift acts against the force of gravity, pushing the aircraft up.
It is the force of the wall pushing against your fingers. This is related to Newton's Third Law.
gravity
Outward Force: dirt pushing against retaining wallInward Force: atmospheric pressure, the retaining wall pushing against the dirtDownward Force: gravity, atmospheric pressure, the retaining wall pushing against the earth.Upward Force: The earth pushing against the retaining wall.
A surface pushing up, equal and opposite to a force pushing against it
If you are behind a car, about to push it forward from a resting position, you will need to exert a force on the car to accelerate it from resting position. While you are pushing against the car, however, there will be a reaction force pushing back at you. In order to produce a large net force against the car without being pushed backward yourself, you need to increase the friction of your feet against the ground...so that the frictional force between your feet and the ground prevents you from sliding backward. The combinations of the frictional force and your force pushing forward against the car will cause the car to move forward. The frictional force of the car being moved from resting position also has to be overcome, of course.
Lift acts against the force of gravity, pushing the aircraft up.
Force of horizontal normal to the wall reaction on the object will be exactly equal to the force you're pushing it against the wall with.
It is the force of the wall pushing against your fingers. This is related to Newton's Third Law.
gravity
Someone pushing against a lever.
The road, pushing against the tyres.
That would be the air pushing against the airplane's wings.
Equal to.
Balanced