Friction is a resistive force, and always acts in a direction opposite the motion of the object. Surface friction is caused by the sliding movement of one surface over another. Air friction is caused by air molecules sliding passed an object. In both cases, it works by transferring kinetic energy from the moving object to the atoms/molecules of whatever is causing the friction.
Friction will slow down the moving object
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One way to tell if friction is happening is if there is heat. Friction occurs when two things rub against each other, and this generates heat. Another way to tell is if the items are becoming chafed.
Friction. If its done right with the right kinds of woods and preparation, you can make a fire with them by rubbing them in a special way.
Without friction it would be impossible to stand, you would instantly fall down flat. Without friction it would be impossible to crawl. Without friction the only way it would be possible to move would be by using thruster jets, as they do on spaceships.
Friction will slow down the moving object
Friction will slow down the moving object
No. There is no way to change the placement of furniture in your house.
By applying external forces. Remember to think about Newton's 1st law.
you need friction so the ground can push on your foot while your foot pushes on the ground. that is the only way you can move.
They could have moved the block through water, which would be Fluid Friction, and makes it easier to move.
They could have moved the block through water, which would be Fluid Friction, and makes it easier to move.
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One way to tell if friction is happening is if there is heat. Friction occurs when two things rub against each other, and this generates heat. Another way to tell is if the items are becoming chafed.
No. Unless the ramp reaches the sky, in which case, a change in the gravitational attraction should be considered. Or if you are considering a change in sliding friction based on a change in surface temperature, that could be a reason for the force to change.
for this purpose, a box may kept in the trolley intead of sliding it. because rolling friction is less than sliding friction. 2nd way is to Greece the surface which will disconnet the connection of rough surface with that box and box can be move easily.
If you are happy with the way things are, then you will not feel a need for change. If you are unhappy with the way things are, then you will feel a need for change.