Danya314 said:It could point either up the incline, or down the incline.
Danya314 said:So, which is it?
or in a direction to oppose motion. (It may be at rest.)Dick said:The force of friction always points opposite the direction the object is moving.
No, it opposes relative motion of the surfaces in contact. I know that's what you meant, but expressed the way you had it can lead to confusion, e.g. when a car is going uphill.Dick said:The force of friction always points opposite the direction the object is moving.
haruspex said:No, it opposes relative motion of the surfaces in contact. I know that's what you meant, but expressed the way you had it can lead to confusion, e.g. when a car is going uphill.
https://www.physicsforums.com/insights/frequently-made-errors-mechanics-friction/
Suppose there were no friction. Which way would the block move? Is there enough information to decide?Danya314 said:So in this case, would it point down the incline?
If a block, attached to a spring, is at rest on an inclined plane and that's all the information you have, then there is not enough information to deduce the direction of the friction force. It could be up the incline or down the incline, depending on the amount by which the spring is stretched or compressed. That's why I said your statement in the "attempt at a solution" section was correct.Danya314 said:So, which is it?
You wrote that it was "on" the spring. Is it above the spring or below it on the slope?Danya314 said:If friction was ignored, then I would assume the the net force would pull the block down the incline and strech the spring.
Friction is the force that opposes motion between two surfaces in contact. It is caused by the microscopic irregularities of the surfaces and can slow down or stop the motion of an object.
Friction can affect the behavior of a spring by reducing the amplitude of its oscillations. This is because friction converts some of the energy of the spring into heat, causing the spring to lose energy and eventually come to a stop.
Friction always points in the opposite direction of the motion of the object. In a diagram of a spring, if the spring is compressing or stretching, friction would point in the direction opposite to the motion of the spring.
Yes, friction can be reduced in a spring by using a lubricant between the surfaces in contact. This decreases the amount of surface irregularities and reduces the friction force.
Friction can affect the accuracy of a spring's measurement by introducing random errors due to the unpredictable nature of friction. This can lead to inconsistencies and inaccuracies in the measured data.