00:01
Hello guys in this problem we have a table on a ground the table we have a mass of 3k and this mass is connected with the help of a pulley to a hanging mass of 2kg let's say the hanging mass is m1 of 2kg and mass m1 on the table is of 3kg we have to find out the minimum coefficient of static friction so that the system is at equilibrium assume acceleration due to gravity is 10 meters per second square.
00:42
If the acceleration due to gravity is 10 meters per second square, then the weight of m1 is m1g and that is of 20 neutrons act in the downward direction.
00:57
A tension d act in the upper direction.
00:59
At equilibrium, the tension should also equivalent to 20 neutons.
01:04
Now this tension pulls the mass m1 in the rightward direction.
01:09
Direction with the same amount of tangency.
01:13
The weight of m1 act in the downward direction and the weight equals 30 newtons.
01:20
The surface of the table exert a upward normal force and it equals in magnitude of the weight that is of 30 newtons.
01:29
Then to keep m1 in equilibrium of static friction force, that is coefficient of static friction times normal act in the leftward direction and to balance this...
