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What does friction do with smooth surfaces?
there is no such thing aas a frictionless object (Perpetual motion machine) so friction still effects it
Why is water frictionless?
it is frictionless because the water had coldism and it is liquid
Can frictionless surface exist?
No.
Is force different in a frictionless floor?
yes it is
What is the Disadvantages of Friction?
firction stops the movement of the object.it opposes the motion of an object.for eg, if u throw a ball on a frictionless surface,it will never stop. more the friction more is the pressure u need to apply to do some work
What does friction do with smooth surfaces?
there is no such thing aas a frictionless object (Perpetual motion machine) so friction still effects it
Why is water frictionless?
it is frictionless because the water had coldism and it is liquid
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.
Can frictionless surface exist?
No.
Is there any frictionless train?
No there is always a resistive force such as air resistance. The closest frictionless train is the japanese magnetic train which has no friction on the track.
If you slide a hockey puck across a frictionless ice rink is there a horizontal force on it to keep it in motion?
Once contact with the object that provided the force to initiate the motion, i.e. your hand or the hockey stick, there is no force tending to keep it in motion. The inertia of the puck in motion will resist any change in that motion, but inertia is a physical property not a force. From a free body diagram the only apparent force acting on the puck would be air resistance tending to slow it down.
Can acceleration happen on a frictionless surface?
yes
Is force different in a frictionless floor?
yes it is
What is the oppositon of friction?
slickness, smoothness, frictionless
If you slide a hockey puck across a frictionless ice rink these must be a horizontal force on it too keep it in the motion?
F=ma constant speed would mean 'a' acceleration is zero thus force zero. The puck would be in equilibrium, and the force would be zero at constant motion. Constant motion is constant velocity including the constant zero velocity.
Why there is the little friction in a joint?
You can not have friction less joint. Even in any mechanical unit, you can not have frictionless movement. By the way, hats off to the great scientist, Sir Issac Newton. He could imagine about the law of motion, in which there was no friction.
Why is perpetual motion difficult on Earth?
You need a frictionless mechanism for perpetual motion. Even with zero contact, the atmosphere itself exerts friction. If you were able to devise a zero contact mechanism in a vacuum, you would still need a propulsion system that would create as much energy as it uses, so far this is not possible.
