00:01
In this problem, we have been given that an ant is observed to be lifting off a cereal.
00:07
So let's say this is the cereal, which is lifted by the ant, and in that case, let's assume that it is lifted by a height edge.
00:16
So of course, and here does some work to lift it off against the force of the gravity.
00:22
So the work done by ant, if that is equal to minus mgh, because here we can see the mind, mass of the serial, let's say it is m.
00:33
So the force acting on it will be m into g, that's the gravitational force.
00:38
Our we can see this is the weight of the serial.
00:41
And as it is displaced in the upward direction, so the angle here is 180 degree, and work is defined as the dot product of the force and displacement...