00:01
Hello students in this question we have given a box having mass m1 equals to 40 kg which is resting on the horizontal surface is attached to the frictional as pulley with mass m2 equals to 16 kg suspended to the other end okay so suppose this is the pulley okay and two masses has been suspended like this okay this is the mass of 40 kg which is placed on the horizontal surface and this is the 16 kg mass which is suspended from the other end.
00:42
And this is the pulley which is hanging from here.
00:47
Let us suppose this pulley has the greater mass so this will have the tendency to move in the downward direction and this will have the tendency to move upward direction.
00:58
So as it is placed already on the horizontal surface, horizontal surface, horizontal surface, so now we can find that this situation will not be present.
01:09
So now let us consider that it is moving in the upper direction with acceleration a and this is moving with acceleration a in the downward direction.
01:21
So let us calculate whether this acceleration is positive or not.
01:26
So if it is positive then it is possible otherwise not.
01:32
Let us consider the tension t and this is tension t.
01:35
T and this weight will be equals to 40 g that is m g and this is 16 g so we can write that for the right pulley okay so t minus 40 g that will be equals to 40 a from the newton's law and for this pulley we can write that 16g minus tension t this is equals to 16a now we can add both the equations so we will get from here that minus of 24 g that is equals to 56a...