tayjohnson0042
05.02.2022 •
Physics
Two blocks are connected by a pulley system represented in the diagram below. M1= 60kg and M2=12kg. Wh is the coefficient of friction required to keep the masses at rest?
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Ответ:
Hi there!
Assuming the pulley is frictionless and massless, we can do a summation of forces for each block.
Block 1 has the tension force (in direction of acceleration) and force of static friction acting on it. For the block to be stationary, the net force must be 0, so:
Now, we can do a summation for Block 2.
We can substitute this tension in the above equation to solve for the force of static friction and the coefficient of static friction.
Ответ: