- #1
zorro
- 1,384
- 0
I am stuck up in a situation created by me.
Consider a block A resting on a smooth horizontal surface. There is another block B of the same size/mass resting over it. There is some friction present in between them, with coefficient of friction μ. A spring of spring constant K is attached to block B (the other side attached to a wall off course) and the blocks are displaced through a distance 'x' together and released. The block B oscillates without slipping over the block A.
At the max. displacement, there should be a max. value of the friction force. Now is this value of friction force equal to μmg? If we draw a F.B.D. of block B at max. displacement, we find that Kx should be greater than friction force for the block to oscillate. If the max. value is μmg, and Kx>μmg, then why doesn't the block B slip over the block A?
Consider a block A resting on a smooth horizontal surface. There is another block B of the same size/mass resting over it. There is some friction present in between them, with coefficient of friction μ. A spring of spring constant K is attached to block B (the other side attached to a wall off course) and the blocks are displaced through a distance 'x' together and released. The block B oscillates without slipping over the block A.
At the max. displacement, there should be a max. value of the friction force. Now is this value of friction force equal to μmg? If we draw a F.B.D. of block B at max. displacement, we find that Kx should be greater than friction force for the block to oscillate. If the max. value is μmg, and Kx>μmg, then why doesn't the block B slip over the block A?