- #26
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Why normal force changes?because the normal force changes.
Why normal force changes?because the normal force changes.
Because the accelerations of the wedge and block change, and because the angle changes.Why normal force changes?
Because as long force is there ,acceleration will also be there and so velocity will go on increasing and there will not be any instant when we can say that it is maximum velocity that's why when there is no horizontal force no acceleration as well as deceleration ,at that moment velocity will be maximum and that is certainly the midpoint of depression.Right?One more thingThe wedge will be at max and min speeds when there is no horizontal force on it,
I don't understand. If the block is not at the middle of the depression then the speed of the wedge is changing.Velocity of wedge at mid point of depression is equal to velocity of wedge just before coming at mid point of depression when there was horizontal force acting on wedge.
Is this correct?Because as long force is there ,acceleration will also be there and so velocity will go on increasing and there will not be any instant when we can say that it is maximum velocity that's why when there is no horizontal force no acceleration as well as deceleration ,at that moment velocity will be maximum and that is certainly the midpoint of depression.Right?
But it must be having some instantaneous velocity just before coming to mid point of depression.If the block is not at the middle of the depression then the speed of the wedge is changing.
Yes... so?But it must be having some instantaneous velocity just before coming to mid point of depression.
But it must be having some instantaneous velocity just before the block comes to mid point of depression.[/QUOTE]By it I mean wedge.But it must be having some instantaneous velocity just before coming to mid point of depression.
By it I mean wedge.[/QUOTE]But it must be having some instantaneous velocity just before the block comes to mid point of depression.
Why?But it will not be quite as much as when the block is at the mid point.
Because as long as the block is not exactly at the mid point the normal force will have a horizontal component, accelerating the wedge.Why?
That's why I have used the term just before coming at mid point.So that there will not be any horizontal force after that.Because as long as the block is not exactly at the mid point the normal force will have a horizontal component, accelerating the wedge.
It's either at the mid point or it isn't. If it's not at the midpoint then there is a horizontal force, no matter how small.That's why I have used the term just before coming at mid point.So that there will not be any horizontal force after that.