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How much force is required to keep a body moving with constants speed on a frictionless surface?
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What does the coefficient of static friction represent?
In free space or on a frictionless surface, it takes no force to move something. Where there is friction, the ratio of (force necessary to start it moving horizontally)/(the object's weight) is the coefficient of static friction on the horizontal surface.
Does a moving object have impulse explain in 2 lines?
An object moving in a frictionless envirnment has not impulse, but in all other moving objects have impulse. Impulse is defined as a change in momentum and therefore if the object is slowing due to friction it is has impulse.
Is it true that an object at motion in a weightless environment will continue moving forever unless a force acts upon it to change its motion?
Oh yes, an object in motion will remain in motion until a force acts on it to change its motion. That is basic physics, which was first described by Isaac Newton. To be more precise, you could also have an object moving forever in an environment that includes gravity, as long as it was moving on a level, completely frictionless surface, which would require magnetic levitation, and of course, no air resistance either, which would require a perfect vacuum (strictly speaking, the surface would not have to be perfectly level either, as long as the variations in height were not too great for the momentum of the object to overcome; it is the frictionless surface which matters). These conditions would be hard to arrange, but in theory it would give you an object that never stops moving. Weight only matters when it results in friction. But it usually does result in friction.
If you're on a moving car are you moving?
The best that can be said is that you are moving relative to the Earth's surface.
What is the force that opposes motion when moving objects over a surface called?
The force that opposes motion when moving objects over a surface is called friction
What does the coefficient of static friction represent?
In free space or on a frictionless surface, it takes no force to move something. Where there is friction, the ratio of (force necessary to start it moving horizontally)/(the object's weight) is the coefficient of static friction on the horizontal surface.
Will a skateboard go faster if you push it with the same force for a longer time?
Yes. The force is measured as "acceleration" and is meters per second per second (or velocity per second) or the first derivative of velocity. On a frictionless surface in an environment without air resistance, and if the skateboard is a frictionless mechanism, if the skateboard is moving at a constant velocity, that means the acceleration is zero, which means that there is no force being applied to it and it is a body in motion staying in motion.
Does a moving object have impulse explain in 2 lines?
An object moving in a frictionless envirnment has not impulse, but in all other moving objects have impulse. Impulse is defined as a change in momentum and therefore if the object is slowing due to friction it is has impulse.
Is it true that an object at motion in a weightless environment will continue moving forever unless a force acts upon it to change its motion?
Oh yes, an object in motion will remain in motion until a force acts on it to change its motion. That is basic physics, which was first described by Isaac Newton. To be more precise, you could also have an object moving forever in an environment that includes gravity, as long as it was moving on a level, completely frictionless surface, which would require magnetic levitation, and of course, no air resistance either, which would require a perfect vacuum (strictly speaking, the surface would not have to be perfectly level either, as long as the variations in height were not too great for the momentum of the object to overcome; it is the frictionless surface which matters). These conditions would be hard to arrange, but in theory it would give you an object that never stops moving. Weight only matters when it results in friction. But it usually does result in friction.
If a person does 80 of work in moving a 30 box over a 20 distance on a horizontal surface what is the minimum force required?
80 jules/20meters= 40Newtons
Water moving along the ground's surface?
Water moving along the grounds surface is called a river or a flood.. A river or a flood both contain moving water. River water is consistently moving. A flood will have water moving until it goes away.
Is a watch with a higher number of jewels best?
Not necessarily. The jewels, often rubies, are intended to provide almost frictionless operation of moving parts. Their effectiveness depends on the quality of the jewels as well as the craftmanship with which the moving parts of the watch are manufactured and assembled.
If you're on a moving car are you moving?
The best that can be said is that you are moving relative to the Earth's surface.
What is a number of rigid but moving pieces of earths surface?
Lithospheric plates are a number of rigid but moving pieces of earths surface.
On what principle does a motor boat work?
The laws of momentum. The boat is on a frictionless surface (water). The engine turns the propeller, which forces water backwards at speed. Since there is nothing to stop the boat moving - it moves forwards.
Is a swamp moving surface water?
No it’s standing surface water
Why the surface is moving?
it is all relative
