00:01
Hello, in the question it is given, consider one object of mass m, so mass of the object is m and this object is moving with the velocity v in one particular direction.
00:13
Then we know that the object will have kinetic energy that is equal to half m v square.
00:20
And suppose the object is placed at a height h, at height h, then the kinetic energy of the object will be equal to the potential energy.
00:39
This condition happens only when the object is placed at height h.
00:44
Then there will be some gravitational acceleration due to gravity acting on that object.
00:50
That is, we know that potential energy equation is m, g, h.
00:55
So, kinetic energy becomes equal to the potential energy only when the object is placed at some height h.
01:01
So, at this condition, that is, when kinetic energy becomes equal to the potential energy, we need to show that v is equal to root of 2gh.
01:15
So the velocity of the object is equal to square root of 2g into h...