The discussion revolves around the motion of a block being pushed off a table by a spring, specifically comparing scenarios with and without friction. Participants explore the implications of friction on the block's velocity and path of motion.
The discussion is ongoing, with participants questioning assumptions about friction and air resistance. Some guidance is offered regarding the need to clarify the path of motion and the effects of friction on acceleration, but no consensus has been reached.
There is uncertainty regarding whether air resistance should be considered as friction in this context, and participants are attempting to clarify the parameters of the problem.
Yes, I'm looking for other differences between the two. Its the same scenario except one set has friction and the other does not.Simon Bridge said:Are you saying that the block moves at a constant speed and direction, just slower than without friction?
It would accelerate quicker and have a higher velocity than its friction counterpart?Simon Bridge said:OK - so how does the object move when it is shoved off a table without friction? How would you describe that?
Initially, before leaving the table, yes but after leaving the table that both will have same acceleration.SalahL said:It would accelerate quicker and have a higher velocity than its friction counterpart?
That depends if friction/resistance from the air is neglected. Do we know the only friction is from the table?Buffu said:Initially, before leaving the table, yes but after leaving the table that both will have same acceleration.
So the object accelerates with friction too? That also means the velocity is not constant right?SalahL said:It would accelerate quicker and have a higher velocity than its friction counterpart?
Objects are same so the air resistance is same , and gravity is anyhow same.Simon Bridge said:That depends if friction/resistance from the air is neglected. Do we know the only friction is from the table?
The question asks to compare the path the objects take with and without friction ... if air resistance is to be cosidered as "friction" in this context, then the air resistance for the first case is zero.Buffu said:Objects are same so the air resistance is same , and gravity is anyhow same.
The net force is same on both is objects after leaving the table.
Therefore even if air resistance is there, we can say the acceleration will be same.
That was my reasoning.
Anyhow, acceleration after leaving the table will be same for the both.Simon Bridge said:The question asks to compare the path the objects take with and without friction ... if air resistance is to be cosidered as "friction" in this context, then the air resistance for the first case is zero.
That's not necessarily true if you're considering velocity-dependent drag forces, but in this problem, the OP was probably supposed to neglect air resistance.Buffu said:Anyhow, acceleration after leaving the table will be same for the both.